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Artykuły w czasopismach na temat „Neighborhood corona”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Gayathri, M., and R. Rajkumar. "Adjacency and Laplacian spectra of variants of neighborhood corona of graphs constrained by vertex subsets." Discrete Mathematics, Algorithms and Applications 11, no. 06 (2019): 1950073. http://dx.doi.org/10.1142/s1793830919500733.

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In this paper, we define some variants of corona of graphs namely, subdivision (respectively, [Formula: see text]-graph, [Formula: see text]-graph, total) neighborhood corona, [Formula: see text]-graph (respectively, [Formula: see text]-graph, total) semi-edge neighborhood corona, [Formula: see text]-graph (respectively, total) semi-vertex neighborhood corona of graphs constrained by vertex subsets. These corona operations generalize some existing corona operations such as subdivision ([Formula: see text]-graph, [Formula: see text]-graph, total) double neighborhood corona, subdivision vertex (

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2

Nagarajan, S., and M. Durga. "Computing Y-index of Different Corona Products of Graphs." Asian Research Journal of Mathematics 19, no. 10 (2023): 67–74. http://dx.doi.org/10.9734/arjom/2023/v19i10729.

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The Y-index of a graph is defined by the sum of four of degrees of the vertices of a graph. Among the all topological indices the Zagreb indices have been used more considerably than any other topological indices in chemical literature. The concept of Corona Product is a recent inclusion to mathematical vocabulary. One of the most significant graph operations is the corona product of several generic and specific graphs, which is one of the most well-known graph products. In this study, we derive some explicit formulations of several corona product types, including subdivision-vertex corona, su

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3

Karthika, R., and N. Mohanapriya. "On dominator coloring of corona products of some generalized graphs." Journal of Combinatorial Mathematics and Combinatorial Computing 126 (June 24, 2025): 291–303. https://doi.org/10.61091/jcmcc126-20.

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Dominator coloring is a fascinating type of proper coloring where vertices are assigned colors so that every vertex in the graph is within the closed neighborhood of at least one vertex from each color class. The smallest number of colors needed for a dominator coloring is called the dominator chromatic number. In this paper, a new graph product called the closed extended neighborhood corona of two graphs is introduced and its dominator chromatic number for any pair of connected graphs is determined. Also, the dominator chromatic numbers for the extended corona of a path with any graph and a c

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4

Falcón, Raúl M., Nagaraj Mohanapriya, and Venkitachalam Aparna. "Optimal Shadow Allocations of Secret Sharing Schemes Arisen from the Dynamic Coloring of Extended Neighborhood Coronas." Mathematics 10, no. 12 (2022): 2018. http://dx.doi.org/10.3390/math10122018.

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Every t-dynamic proper n-coloring of a graph G describes a shadow allocation of any (n,t+1)-threshold secret sharing scheme based on G, so that, after just one round of communication, each participant can either reconstruct the secret, or obtain a different shadow from each one of his/her neighbors. Thus, for just one round of communication, this scheme is fair if and only if the threshold is either less than or equal to the minimum degree of G, or greater than or equal to its maximum degree. Despite that the dynamic coloring problem has widely been dealt with in the literature, a comprehensiv

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5

Adiga, Chandrashekar, B. R. Rakshith, and K. N. Subba Krishna. "Spectra of the extended neighborhood corona and extended corona of two graphs." Electronic Journal of Graph Theory and Applications 4, no. 1 (2016): 101–10. http://dx.doi.org/10.5614/ejgta.2016.4.1.9.

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Shrimali, N. P., and A. K. Rathod. "VERTEX-EDGE NEIGHBORHOOD PRIME LABELING IN THE CONTEXT OF CORONA PRODUCT." South East Asian J. of Mathematics and Mathematical Sciences 18, no. 03 (2022): 347–58. http://dx.doi.org/10.56827/seajmms.2022.1803.29.

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Let G be a graph with vertex set V (G) and edge set E(G). For u ∈ V (G), NV (u) = {w ∈ V (G)|uw ∈ E(G)} and NE(u) = {e ∈ E(G)|e = uv, for some {| ∈ } { | ∈ } v ∈ V (G)}. A bijective function f : V (G) ∪ E(G) → {1, 2, 3, . . . , |V (G) ∪ E(G)|} is said to be a vertex-edge neighborhood prime labeling, if for u ∈ V (G) with deg(u) = 1, gcd {f (w), f (uw)|w ∈ NV (u)} = 1 ; for u ∈ V (G) with deg(u) > 1, gcd f (w) w NV (u) = 1 and gcd f (e) e NE(u) = 1. A graph which admits a vertex-edge neighborhood prime labeling is called a vertex-edge neighborhood prime graph. In this paper we prove Km,n Ⓢ K

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7

Cao, Jinde, Jia-Bao Liu, and Shaohui Wang. "Resistance distances in corona and neighborhood corona networks based on Laplacian generalized inverse approach." Journal of Algebra and Its Applications 18, no. 03 (2019): 1950053. http://dx.doi.org/10.1142/s0219498819500531.

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Let [Formula: see text] and [Formula: see text] be two graphs on disjoint sets of [Formula: see text] and [Formula: see text] vertices, respectively. The corona of graphs [Formula: see text] and [Formula: see text], denoted by [Formula: see text], is the graph formed from one copy of [Formula: see text] and [Formula: see text] copies of [Formula: see text] where the [Formula: see text]th vertex of [Formula: see text] is adjacent to every vertex in the [Formula: see text]th copy of [Formula: see text]. The neighborhood corona of [Formula: see text] and [Formula: see text], denoted by [Formula:

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8

Rinurwati, S. E. Setiawan, and Slamin. "Bounds for metric dimensions of generalized neighborhood corona graphs." Heliyon 7, no. 7 (2021): e07433. http://dx.doi.org/10.1016/j.heliyon.2021.e07433.

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9

OdabaŞs, Zeynep Nihan, and Murat Erşen Berberler. "On the First Zagreb Index of Neighborhood Corona Graphs." Journal of Computational and Theoretical Nanoscience 11, no. 12 (2014): 2585–87. http://dx.doi.org/10.1166/jctn.2014.3676.

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10

Yang, Yujun, and Vladimir R. Rosenfeld. "Some spectral invariants of the neighborhood corona of graphs." Discrete Applied Mathematics 247 (October 2018): 300–308. http://dx.doi.org/10.1016/j.dam.2018.03.052.

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11

Bent-Usman, Wardah Masanggila, Rowena Isla, and Sergio Canoy. "Neighborhood Connected k-Fair Domination Under Some Binary Operations." European Journal of Pure and Applied Mathematics 12, no. 3 (2019): 1337–49. http://dx.doi.org/10.29020/nybg.ejpam.v12i3.3506.

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Let G=(V(G),E(G)) be a simple graph. A neighborhood connected k-fair dominating set (nckfd-set) is a dominating set S subset V(G) such that |N(u) intersection S|=k for every u is an element of V(G)\S and the induced subgraph of S is connected. In this paper, we introduce and invistigate the notion of neighborhood connected k-fair domination in graphs. We also characterize such dominating sets in the join, corona, lexicographic and cartesians products of graphs and determine the exact value or sharp bounds of their corresponding neighborhood connected k-fair domination number.

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12

Krishnamurthy, K. Sathish Kumar, N. Gnanamalar David, and K. G. Subramanian. "Domination and dominator coloring of neighborhood corona of certain graphs." Gulf Journal of Mathematics 13, no. 2 (2022): 106–12. http://dx.doi.org/10.56947/gjom.v13i2.811.

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A dominator coloring of a graph G is a proper coloring of G in which each vertex of the graph dominates every vertex of some color class. The dominator chromatic number of G is the minimum number of color classes in a dominator coloring of G. When operation on graphs is performed on classes of graphs result from the new class of graphs are obtained. The neighborhood corona is one such operation on graphs, having interesting applications as well. In this paper we study this operation on certain graph classes and discuss the bounds in terms of domination number and dominator chromatic number.

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13

Rakshith, B. R., and K. N. Subba Krishna. "THE SPECTRUM OF THE NEIGHBORHOOD COMPLEMENT CORONA OF TWO GRAPHS." Advances and Applications in Discrete Mathematics 16, no. 1 (2015): 77–87. http://dx.doi.org/10.17654/aadmjul2015_077_087.

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14

Hameed, Shehla, Muhammad Kamran Jamil, Muhammad Waheed, Muhammad Azeem, and Senesie Swaray. "Two Complex Graph Operations and their Exact Formulations on Topological Properties." Complexity 2022 (June 7, 2022): 1–15. http://dx.doi.org/10.1155/2022/6927111.

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Graph operations are utilized for developing complicated graph structures from basic graphs, and these basic graphs can help to understand the properties of complex networks. While on the other side, the topological descriptor is known as a numeric value that is associated with the graph of a network. It has enormous practical applications in chemistry and other fields of science. This particular work in this draft is the extended work and investigated the first, second, first multiplicative, first reformulated Zagreb indices, and the forgotten index of subdivision double corona and subdivisio

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15

Santamaria, I. C., and T. Van Doorsselaere. "High frequency generation in the corona: Resonant cavities." Astronomy & Astrophysics 611 (March 2018): A10. http://dx.doi.org/10.1051/0004-6361/201731016.

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Aims. Null points are prominent magnetic field singularities in which the magnetic field strength strongly decreases in very small spatial scales. Around null points, predicted to be ubiquitous in the solar chromosphere and corona, the wave behavior changes considerably. Null points are also responsible for driving very energetic phenomena, and for contributing to chromospheric and coronal heating. In previous works we demonstrated that slow magneto-acoustic shock waves were generated in the chromosphere propagate through the null point, thereby producing a train of secondary shocks escaping a

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16

Vignesh, Radhakrishnan, Jayabalan Geetha, and Kanagasabapathi Somasundaram. "Total coloring conjecture for vertex, edge and neighborhood corona products of graphs." Discrete Mathematics, Algorithms and Applications 11, no. 01 (2019): 1950014. http://dx.doi.org/10.1142/s1793830919500149.

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A total coloring of a graph [Formula: see text] is an assignment of colors to the elements of the graph [Formula: see text] such that no adjacent vertices and edges receive the same color. The total chromatic number of a graph [Formula: see text], denoted by [Formula: see text], is the minimum number of colors that suffice in a total coloring. Behzad and Vizing conjectured that for any simple graph [Formula: see text], [Formula: see text], where [Formula: see text] is the maximum degree of [Formula: see text]. In this paper, we prove the tight bound of the total coloring conjecture for the thr

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17

Aparna, V., and N. Mohanapriya. "On r-Dynamic Coloring of Neighborhood Corona of Path with Some graphs." Journal of Physics: Conference Series 1543 (May 2020): 012001. http://dx.doi.org/10.1088/1742-6596/1543/1/012001.

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18

Simanjuntak, Rinovia, and Aholiab Tritama. "Distance Antimagic Product Graphs." Symmetry 14, no. 7 (2022): 1411. http://dx.doi.org/10.3390/sym14071411.

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A distance antimagic graph is a graph G admitting a bijection f:V(G)→{1,2,…,|V(G)|} such that for two distinct vertices x and y, ω(x)≠ω(y), where ω(x)=∑y∈N(x)f(y), for N(x) the open neighborhood of x. It was conjectured that a graph G is distance antimagic if and only if G contains no two vertices with the same open neighborhood. In this paper, we study several distance antimagic product graphs. The products under consideration are the three fundamental graph products (Cartesian, strong, direct), the lexicographic product, and the corona product. We investigate the consequence of the non-commu

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19

Alikhani, Saeid, Samaneh Soltani, and Indra Rajasingh. "On the k-neighborhood coloring of the corona and join products of graphs." Journal of Information and Optimization Sciences 40, no. 3 (2019): 805–11. http://dx.doi.org/10.1080/02522667.2019.1569824.

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20

Maji, Durbar, and Ganesh Ghorai. "A novel graph invariant: The third leap Zagreb index under several graph operations." Discrete Mathematics, Algorithms and Applications 11, no. 05 (2019): 1950054. http://dx.doi.org/10.1142/s179383091950054x.

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The third leap Zagreb index of a graph [Formula: see text] is denoted as [Formula: see text] and is defined as [Formula: see text], where [Formula: see text] and [Formula: see text] are the 2-distance degree and the degree of the vertex [Formula: see text] in [Formula: see text], respectively. The first, second and third leap Zagreb indices were introduced by Naji et al. [A. M. Naji, N. D. Soner and I. Gutman, On leap Zagreb indices of graphs, Commun. Combin. Optim. 2(2) (2017) 99–117] in 2017. In this paper, the behavior of the third leap Zagreb index under several graph operations like the C

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21

Javad Mirza-Aghazadeh, Ali Sadaghianifar, Morad Ali Zareipour, Mohammad Mirza-Aghazadeh-Attari, and Jila Nagavi Kalejahi. "Social Mobilization in the Wake of Coronavirus Disease-19: A Brief Report of a Planned Approach to Community Health in Iran." Open Access Macedonian Journal of Medical Sciences 8, T1 (2020): 433–35. http://dx.doi.org/10.3889/oamjms.2020.5467.

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BACKGROUND: Several plans have been taken by health system to deal with COVID-19. The rapid spread of the virus and the special care that critical patients need put a major pressure on the healthcare system, which may not be able to compensate for its dimensions in various aspects. Therefore, the participation and cooperation of the society in the form of mobilizing the society with the health system will be effective in controlling and preventing this disease. AIM: The overall purpose of this study is to design a community mobilization framework based on the PATCH Model to prevent the s

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22

Moranta, Leslie, Jonathan Gagné, Dominic Couture, and Jacqueline K. Faherty. "New Coronae and Stellar Associations Revealed by a Clustering Analysis of the Solar Neighborhood." Astrophysical Journal 939, no. 2 (2022): 94. http://dx.doi.org/10.3847/1538-4357/ac8c25.

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Abstract We present the results of a density-based clustering analysis of the 6D XYZ Galactic positions and UVW-space velocities of nearby (≤200 pc) Gaia Early Data Release 3 stars with radial velocities using HDBSCAN, in opposition to previous studies (Kounkel & Covey 2019; Meingast et al. 2021) that only included positions and tangential velocities. Among the 241 recovered clusters, we identify more than 50 known associations, 32 new candidate stellar streams aged 100 Myr to 3 Gyr, nine extensions of known Theia groups uncovered by Kounkel & Covey, and eight newly recognized coronae

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23

Probowati, Wiwit, and Nosa Septiana Anindhita. "Pemberdayaan Perempuan Dalam Produksi Masker Dan Penerapan Disiplin Memakai Masker Bagi Pekerja Harian Dalam Penanganan Wabah Covid-19." Jurnal Pengabdian UntukMu NegeRI 5, no. 1 (2021): 44–51. http://dx.doi.org/10.37859/jpumri.v5i1.2150.

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The Covid-19 outbreak that hit globally had amajor impact on economic activity in developing countries, especially Indonesia. In order to continue carrying out daily activities, especially working, it is necessary to comply with health protocol. Health protocols when doing activities include wearing masks, washing hands frequently with soap, avoiding crowds and maintaining a minumum distance of 1.5 meters from each other. The need for masks that are currentky not fulfilled by daily workers or laborers in Margomulyo village, Seyegan sub-district, Sleman regency, Province of Yogyakarta is primar

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24

Tutukov, A. V., N. V. Chupina, and S. V. Vereshchagin. "KINEMATICS OF HIGH-SPEED STARS WITHIN 300 PCS FROM THE SUN ACCORDING TO GAIA DR3." Астрономический журнал 100, no. 12 (2023): 1286–310. http://dx.doi.org/10.31857/s0004629923120125.

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The kinematics of stars from the solar neighborhood with a radius of 300 pc has been studied using the Gaia DR3 data. Our sample includes n = 970 171 stars – AG300 (A – ensemble, G – Gaia, 300 – radius of the studied zone in pc). The kinematics of these stars reflects the morphology of the main stellar populations of the Galaxy: the stellar disk, bulge, halo, and stellar corona of a supermassive black hole (SMBH). The presence of stars in AG300 with velocities exceeding the escape velocity from the Galaxy indicates the presence in the circumsolar space of extragalactic stars belonging to the s

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25

Caadan, Julius Guhiting, Rolando N. Paluga, and Imelda S. Aniversario. "Distance k-Cost Effective Sets in the Corona and Lexicographic Product of Graphs." European Journal of Pure and Applied Mathematics 16, no. 1 (2023): 261–70. http://dx.doi.org/10.29020/nybg.ejpam.v16i1.4381.

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Let G be a connected graph and k ≥ 1 be an integer. The open k-neighborhood Nk G(v) of v ∈ V (G) is the set Nk G(v) = {u ∈ V (G) \ {v}: dG(u, v) ≤ k}. A set S of vertices of G is called distance k-cost effective of G if for every vertex u in S, |Nk G(u) ∩ (V (G) \ S)| − |Nk G(u) ∩ S| ≥ 0. The maximum cardinality of a distance k-cost effective set of G is called the upper distance k-cost effective number of G. In this paper, we characterized the distance k-cost effective sets in the corona and lexicographic product of two graphs. Consequently, the bounds or the exact values of the upper distanc

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26

Nianga, Caen Grace Sarona, and Sergio R. Canoy Jr. "On Topologies Induced by Graphs Under Some Unary and Binary Operations." European Journal of Pure and Applied Mathematics 12, no. 2 (2019): 499–505. http://dx.doi.org/10.29020/nybg.ejpam.v12i2.3421.

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Let G = (V (G),E(G)) be any simple undirected graph. The open hop neighborhood of v ϵ V(G) is the set 𝑁_𝐺^2(𝑣) = {u ϵ V(G): 𝑑_𝐺 (u,v) = 2}. Then G induces a topology τ_G on V (G) with base consisting of sets of the form F_G^2[A] = V(G) \ N_G^2 [A] where N_G^2 [A] = A ∪ {v ϵ V(G): 𝑁_𝐺^2(𝑣) ∩ A ≠ ∅ } and A ranges over all subsets of V (G). In this paper, we describe the topologies induced by the complement of a graph, the join, the corona, the composition and the Cartesian product of graphs.

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27

Schulz, Philipp, and Judith Keller. "Jeder ist sich selbst der Nächste? – Geographische Reflexionen zur Veränderung von Nachbarschaft und Zuhause in Zeiten der Corona-Krise." Berichte Geographie und Landeskunde 94, no. 4 (2021): 300. http://dx.doi.org/10.25162/bgl-2021-0015.

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Lemdani, Rachid, Moncef Abbas, and Jasmina Ferme. "Packing chromatic numbers of finite super subdivisions of graphs." Filomat 34, no. 10 (2020): 3275–86. http://dx.doi.org/10.2298/fil2010275l.

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Given a graph G and a positive integer i, an i-packing in G is a subset W of the vertex set of G such that the distance between any two distinct vertices from W is greater than i. The packing chromatic number of a graph G, ??(G), is the smallest integer k such that the vertex set of G can be partitioned into sets Vi, i ? {1,..., k}, where each Vi is an i-packing. In this paper, we present some general properties of packing chromatic numbers of finite super subdivisions of graphs. We determine the packing chromatic numbers of the finite super subdivisions of complete graphs, cycles and some nei

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29

BERBERLER, MURAT ERSEN. "Quasi-Laplacian energy of fractal graphs." Acta et Commentationes Universitatis Tartuensis de Mathematica 28, no. 1 (2024): 5–18. http://dx.doi.org/10.12697/acutm.2024.28.01.

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Graph energy is a measurement of determining the structural information content of graphs. The first Zagreb index can be handled with its connection to graph energy. In this paper, a novel and significant application of the first Zagreb index to composite graphs based on fractal graphs is revealed, and by the relation between quasi-Laplacian energy and the vertex degrees of a graph, we derive closed-form formulas for the quasi-Laplacian energy of fractal graphs or namely R-graphs, R-vertex and edge join, R-vertex and edge corona, R-vertex and edge neighborhood graphs in terms of the correspond

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30

Jihong, Yang, and Yun Lu. "Behavior recognition based on track space-time characteristics." Journal of Intelligent & Fuzzy Systems 39, no. 6 (2020): 8675–84. http://dx.doi.org/10.3233/jifs-189263.

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Under the influence of novel corona virus pneumonia epidemic prevention and control, higher requirements for behavior recognition in complex environment are put forward. The accuracy of traditional methods for sports training is not high, so a method is needed to improve the local action recognition to assist sports training. In the process of behavior recognition, if only the track is regarded as an independent individual, the information of its neighbor will be ignored. Therefore, we use KNN algorithm to get the nearest neighbor trajectory. In order to calculate the rich neighborhood informa

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31

Ketabollahi, Kasra, Morteza Mirgholami, and Yaser Shahbazi. "Rethinking the Concept of Biological Health of the Contemporary Iranian-Islamic Neighborhood in the Post-Corona Era." Culture of Islamic Architecture and Urbanism Journal 7, no. 2 (2022): 77–98. http://dx.doi.org/10.52547/ciauj.7.2.77.

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Shanmugam, Megala, Mohanapriya Nagaraj, Karthika Ravichandran, and Abirami Kamaraj. "On dominator and total dominator coloring of duplication corresponding corona of path, pan, complete and sunlet graphs." Open Journal of Discrete Applied Mathematics 8, no. 2 (2025): 18–31. https://doi.org/10.30538/psrp-odam2025.0113.

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A dominator coloring of a graph \(\mathscr{G}\) is a proper coloring where each vertex of \(\mathscr{G}\) is within the closed neighborhood of at least one vertex from each color class. The minimum number of color classes required for a dominator coloring of \(\mathscr{G}\) is termed the dominator chromatic number. Additionally, a total dominator coloring of a graph \(\mathscr{G}\) is a proper coloring in which every vertex dominates at least one color class other than its own. The minimum number of color classes needed for a total dominator coloring of \(\mathscr{G}\) is known as the total do

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Yu, Wanshui, Qingmin Li, Jiyao Zhao, Hongbo Li, and Wah Hoon Siew. "Thundercloud-Induced Spatial Ion Flow in the Neighborhood of Rotating Wind Turbine and Impact Mechanism on Corona Inception." IEEE Transactions on Plasma Science 49, no. 9 (2021): 2925–35. http://dx.doi.org/10.1109/tps.2021.3102376.

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Basher, M. "Group vertex magic labeling of some special graphs." Proyecciones (Antofagasta) 43, no. 1 (2024): 119–31. http://dx.doi.org/10.22199/issn.0717-6279-5880.

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For any additive abelian group $A$. Let $\mu$ be an element of $A$, a graph $G=(V,E)$ is said to be $A$-vertex magic graph if there exist a labeling function $f:V(G)\rightarrow A\setminus\{0\}$ such that $\omega(v)=\sum_{u\in N(v)} f(u)=\mu$ for any vertex $v$ of $G$, where $N(v)$ is the set of the open neighborhood of $v$. In this paper, we prove that the graphs such as wheel, Corona $C_{n}\odot mk$, subdivision of ladder and $t$-fold wheel for $t\neq n$ nor $n-2$ are $A$-vertex magic graphs. Also we prove that the subdivide wheel, helm and closed helm are $Z_{k}$-vertex magic graphs. However

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Pagcu, Ethel Mae, Gina Malacas, and Sergio Canoy, Jr. "Locating Hop Sets in a Graph." European Journal of Pure and Applied Mathematics 15, no. 4 (2022): 1705–15. http://dx.doi.org/10.29020/nybg.ejpam.v15i4.4500.

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Let G be a connected graph with vertex set V (G) and edge set E(G). The open hop neighborhood of vertex v ∈ V (G) is the set NG(v, 2) = {w ∈ V (G) : dG(v, w) = 2}, where dG(v, w) denotes the distance between v and w. A non-empty set S ⊆ V (G) is a locating hop set of G if NG(u, 2) ∩ S ̸= NG(v, 2) ∩ S for every pair of distinct vertices u, v ∈ V (G) \ S. The smallest cardinality of a locating hop set of G, denoted by lhn(G) is called the locating hop number of G. This study focuses mainly on the concept of locating hop set in graphs. Characterizations of locating hop sets in the join and corona

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Grines, V. Z., E. V. Zhuzhoma, and O. V. Pochinka. "Dynamical Systems and Topology of Magnetic Fields in Conducting Medium." Contemporary Mathematics. Fundamental Directions 63, no. 3 (2017): 455–74. http://dx.doi.org/10.22363/2413-3639-2017-63-3-455-474.

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We discuss application of contemporary methods of the theory of dynamical systems with regular and chaotic hyperbolic dynamics to investigation of topological structure of magnetic ﬁelds in conducting media. For substantial classes of magnetic ﬁelds, we consider well-known physical models allowing us to reduce investigation of such ﬁelds to study of vector ﬁelds and Morse-Smale diﬀeomorphisms as well as diﬀeomorphisms with nontrivial basic sets satisfying the A axiom introduced by Smale. For the point-charge magnetic ﬁeld model, we consider the problem of separator playing an important role in

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Bharati, S., N. Bajracharya, K. D. Tiwari, O. Maharjan, and S. Maharjan. "COVID-19 Pandemic: An Experience of OBGYN Residents at Kathmandu Model Hospital." Kathmandu University Medical Journal 18, no. 2 (2020): 102–4. http://dx.doi.org/10.3126/kumj.v18i2.33066.

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COVID-19, a novel corona virus has affected the life of each and every individual worldwide. Nepal being the neighborhood country of china, though, we had a late case detection. But, since the month of July this virus has spread in an alarming manner in Nepal. Nepal being one of the developing countries, we lack in equipments, manpower resources and also in treatment centers. Looking into the devastating scenario of Covid 19 in China, Italy, New York, Brazil and our neighboring countries like India, Pakistan and Bangladesh is scary. We wondered how we were going to handle this pandemic if simi

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NEZHYVA, Mariia, and Viktoriia MYSIUK. "Market of FMCG and service sectors in China." Foreign trade: economics, finance, law 122, no. 3 (2022): 119–28. http://dx.doi.org/10.31617/zt.knute.2022(122)09.

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Introduction. The fast-moving consumer goods (FMCG) industry is one of the basic ones for the existence of society and almost the first industry that directly felt the impact of the corona crisis and needed prompt adaptation. Problem. China has been named the undisputed leader in economic growth over the past few years, so analyzing the impact of the pandemic on the underlying sectors of the economy is an important aspect to study this country. The aim of the article is to determine the state and trends of the impact of COVID-19 on FMCG and service sectors in China. Methods. The research was c

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Gai, Mario, Alberto Vecchiato, Alberto Riva, Alexey G. Butkevich, Deborah Busonero, and Federico Landini. "GLADE: Gravitational Light-Bending Astrometry Dual-Satellite Experiment." Applied Sciences 14, no. 2 (2024): 888. http://dx.doi.org/10.3390/app14020888.

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Light bending is one of the classical tests of general relativity and is a crucial aspect to be taken into account for accurate assessments of photon propagation. In particular, high-precision astrometry can constrain theoretical models of gravitation in the weak field limit applicable to the Sun neighborhood. We propose a concept for experimental determination of the light deflection close to the Sun in the 10−7 to 10−8 range, in a modern rendition of the 1919 experiment by Dyson, Eddington and Davidson, using formation flying to generate an artificial long-lasting eclipse. The technology is

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Ramzi, Qwasmi, Bin Abdullah Alias, Mohd Noor Norzailawati, and Bt Asmawi Zainora. "Establishing a Covid-19 Defensible Space According to Urban Fabric Using Analytical Hierarchy Processes (AHP): Case Study in Bukit Bintang, Kuala Lumpur." American Journal of Agricultural Science, Engineering, and Technology 6, no. 3 (2022): 62–72. http://dx.doi.org/10.54536/ajaset.v6i3.811.

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Since the start of 2020, people all around the globe have been subject to life-limiting limitations duw to Covid-19 that is unprecedented. The world’s population has been dealing with previously unheard-of restrictions on their way of life since the start of 2020. The proper urban planning is essential because it relates to land management to create a healthy environment free from epidemics. It analyses the planning effectiveness on space as defended space using GIS tools. This research has used five criteria such as walkability, sidewalk comfortability (obstacles on the sidewalk), sidewalk sa

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Qwasmi, Ramzi, Alias bin Abdullah, Norzailawati Mohd Noor, and Zainora bt Asmawi. "Establishing a Covid-19 Defensible Space According to Urban Fabric Using Analytical Hierarchy Processes (AHP): Case Study in Bukit Bintang, Kuala Lumpur." American Journal of Agricultural Science, Engineering, and Technology 6, no. 3 (2022): 62–72. https://doi.org/10.54536/ajaset.v6i3.811.

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Since the start of 2020, people all around the globe have been subject to life-limiting limitations duw to Covid-19 that is unprecedented. The world’s population has been dealing with previously unheard-of restrictions on their way of life since the start of 2020. The proper urban planning is essential because it relates to land management to create a healthy environment free from epidemics. It analyses the planning effectiveness on space as defended space using GIS tools. This research has used five criteria such as walkability, sidewalk comfortability (obstacles on the sidewalk), sidew

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Nawa, Nobutoshi, Yui Yamaoka, Yuna Koyama, et al. "Association between Social Integration and Face Mask Use Behavior during the SARS-CoV-2 Pandemic in Japan: Results from U-CORONA Study." International Journal of Environmental Research and Public Health 18, no. 9 (2021): 4717. http://dx.doi.org/10.3390/ijerph18094717.

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Face mask use is a critical behavior to prevent the spread of SARS-CoV-2. We aimed to evaluate the association between social integration and face mask use during the COVID-19 pandemic in a random sample of households in Utsunomiya City, Greater Tokyo, Japan. Data included 645 adults in the Utsunomiya COVID-19 seROprevalence Neighborhood Association (U-CORONA) study, which was conducted after the first wave of the pandemic, between 14 June 2020 and 5 July 2020, in Utsunomiya City. Social integration before the pandemic was assessed by counting the number of social roles, based on the Cohen’s s

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Latifah, Anisatul. "The Practice of Mbaranggawe Puputan : A Solution for ‎Marriage Reception in Javanese Communities During the ‎Covid - 19 Pandemic." Veteran Law Review 4, no. 2 (2021): 157. http://dx.doi.org/10.35586/velrev.v4i2.2706.

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Javanese people are among those who always try to uphold the values of traditional and cultural traditions so that their life in the universe is always in harmony and harmony. One of the traditional traditions of the Javanese people in pursuing their life cycle in order to obtain peace of life, serenity, harmony and harmony with the universe is by carrying out certain ceremonies or customs. Examples of the traditional ceremony on the Java community is mbaranggawe pengantenan (weddings) and mbaranggawe muputi or puputan (ceremony performed after dropping the baby’s navel). The implementation of

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Koyama, Yuna, Nobutoshi Nawa, Yui Yamaoka, Hisaaki Nishimura, Jin Kuramochi, and Takeo Fujiwara. "Association between Social Engagements and Stigmatization of COVID-19 Infection among Community Population in Japan." International Journal of Environmental Research and Public Health 19, no. 15 (2022): 9050. http://dx.doi.org/10.3390/ijerph19159050.

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In the face of unknown risks, including the coronavirus disease 2019 (COVID-19) pandemic, we tend to have stigmatized perceptions. The current study aimed to examine the association of social engagements with the level of stigmatization of COVID-19 infection among the general population. The data of 429 participants of the Utsunomiya COVID-19 seroprevalence neighborhood association (U-CORONA) study, a population-based cohort study conducted in Utsunomiya City, Japan, were analyzed. Their stigmatized perception of people with COVID-19 infection was evaluated via a questionnaire for the situatio

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Musfialdy, Musfialdy, Dadang Rahmat Hidayat, Siti Karlinah, Uud Wahyudin, and Muchamad Fauzi Jamal. "The Mechanism of Newsroom and TV Journalist Work Routines during the COVID-19 Pandemic." Jurnal Kajian Jurnalisme 7, no. 2 (2024): 112. http://dx.doi.org/10.24198/jkj.v7i2.46409.

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A disease outbreak known as COVID-19 (Corona Virus Diseases 2019) is currently affecting virtually every part of the planet. The COVID-19 outbreak is a catastrophe that endangers and disrupts life, causes fatalities, traumatizes victims, and engenders a climate of threat and fear. The COVID-19 pandemic tragedy not only affected the number of sick and deceased individuals but also altered work schedules in the neighborhood. Additionally, COVID-19 has brought about changes in journalism, particularly in television journalism. The purpose of this study is to ascertain the mechanism governing the

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Kang, Ho-Jeong. "A study on the cultural content of local cultural resources in Daeya-dong: Gunpo-si - Focusing on <Community Sound Exhibition> and follow-up work." K-Culture·Story Contents Reasearch Institute 3 (July 31, 2023): 93–110. http://dx.doi.org/10.56659/kcsc.2023.07.3.93.

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Gunpo City is an area where rapid industrialization and urbanization have progressed since the establishment of Sanbon New City in 1988. In this process, only the area of Daya-dong, near Mount Suri, has remained a rural area and has maintained its traditional village until now. The new urban area was replaced by the indigenous people who had local cultural resources due to the new influx, and in the process, Gunpo City lost its cultural base using local cultural resources. This paper began with a survey project for the <Community Sound Exhibition> conducted in 2018 and focused on the col

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Li, Yi Peng, Xiao Gang Liu, and Sheng Gui Zhang. "Laplacian Perfect State Transfer in Extended Neighborhood Coronas." Acta Mathematica Sinica, English Series 37, no. 12 (2021): 1921–32. http://dx.doi.org/10.1007/s10114-021-0582-4.

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Gamorez, Anabel Enriquez, Caen Grace Nianga, and Sergio Canoy Jr. "Topologies Induced by Neighborhoods of a Graph Under Some Binary Operations." European Journal of Pure and Applied Mathematics 12, no. 3 (2019): 749–55. http://dx.doi.org/10.29020/nybg.ejpam.v12i3.3464.

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Let G = (V (G), E(G)) be any undirected graph. Then G induces a topology τ_G on V (G) with base consisting of sets of the form F_G[A] = V (G)\N_G[A], where N_G[A] = A ∪ { x : xa ∈ E(G) for some a ∈ A } and A ranges over all subsets of V (G). In this paper, we describe the topologies induced by the corona, edge corona, disjunction, symmetric difference, Tensor product, and the strong product of two graphs by determining the subbasic open sets.

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Astuti, Selvia Febriana, Latifa Nursyabania, Muhammad Jabbar Falih, Samiyya Rosyid Attamini, Mohammad Rafli, and Sri Musta’ina. "SOSIALISASI ADAPTASI KEBIASAAN BARU DI RT 5 / RW 11, KELURAHAN KALISARI, KECAMATAN PASAR REBO, JAKARTA TIMUR MENGHADAPI PANDEMI COVID-19." Jurnal Layanan Masyarakat (Journal of Public Services) 4, no. 2 (2020): 448. http://dx.doi.org/10.20473/jlm.v4i2.2020.448-455.

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COVID-19 (Corona Virus Disease 2019) currently becoming a pandemic in various countries, including Indonesia. The highly transmission rate of this disease causes changes in almost all living conditions and patterns of social life. Formerly, the community can freely interact and be close together without any worries, free crowds, no need to use masks, now, all turned into nessecity to apply health protocols such as maintaining distance in interactions, always using masks and washing hands diligently, always implementing the movement of the community to live a healthy life (germas). Such behavio

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Zaerina, Siti Zaerina, Yusniar Hanani Darundiati, and Nikie Astorina Yunita Dewanti. "Faktor Terkait Praktik PHBS Masyarakat Pada Masa Pandemi Covid-19 Di Desa Randuboto Kabupaten Gresik." KESMAS UWIGAMA: Jurnal Kesehatan Masyarakat 7, no. 1 (2021): 140–49. http://dx.doi.org/10.24903/kujkm.v7i1.1144.

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Background: COVID-19 is an pandemic, including Indonesia. PHBS (Clean and Healthy Living Behaviour) is an effort to strengthen the behaviour of a person, group, and community to care for and prioritize health to create a higher quality life. Community participation in efforts to prevent COVID-19 is an important factor in breaking the chain of infection. As 9 July 2020 3 residents have been confirmed positive for COVID-19 in Randuboto Village.  Objectives: Therefore this research was carried out to analyze the factors related to PHBS practices durung the COVID-19 pandemic in R

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