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Дисертації з теми "Associated graph"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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1

Meyer, Marie. "Polytopes Associated to Graph Laplacians." UKnowledge, 2018. https://uknowledge.uky.edu/math_etds/54.

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Graphs provide interesting ways to generate families of lattice polytopes. In particular, one can use matrices encoding the information of a finite graph to define vertices of a polytope. This dissertation initiates the study of the Laplacian simplex, PG, obtained from a finite graph G by taking the convex hull of the columns of the Laplacian matrix for G. The Laplacian simplex is extended through the use of a parallel construction with a finite digraph D to obtain the Laplacian polytope, PD. Basic properties of both families of simplices, PG and PD, are established using techniques from Ehrha

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2

Reiß, Susanna. "Optimizing Extremal Eigenvalues of Weighted Graph Laplacians and Associated Graph Realizations." Doctoral thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-93599.

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This thesis deals with optimizing extremal eigenvalues of weighted graph Laplacian matrices. In general, the Laplacian matrix of a (weighted) graph is of particular importance in spectral graph theory and combinatorial optimization (e.g., graph partition like max-cut and graph bipartition). Especially the pioneering work of M. Fiedler investigates extremal eigenvalues of weighted graph Laplacians and provides close connections to the node- and edge-connectivity of a graph. Motivated by Fiedler, Göring et al. were interested in further connections between structural properties of the graph and

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3

Wappler, Markus. "On Graph Embeddings and a new Minor Monotone Graph Parameter associated with the Algebraic Connectivity of a Graph." Doctoral thesis, Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-115518.

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We consider the problem of maximizing the second smallest eigenvalue of the weighted Laplacian of a (simple) graph over all nonnegative edge weightings with bounded total weight. We generalize this problem by introducing node significances and edge lengths. We give a formulation of this generalized problem as a semidefinite program. The dual program can be equivalently written as embedding problem. This is fifinding an embedding of the n nodes of the graph in n-space so that their barycenter is at the origin, the distance between adjacent nodes is bounded by the respective edge length, and the

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4

Wappler, Markus [Verfasser], Christoph [Akademischer Betreuer] Helmberg, and Franz [Gutachter] Rendl. "On Graph Embeddings and a new Minor Monotone Graph Parameter associated with the Algebraic Connectivity of a Graph / Markus Wappler ; Gutachter: Franz Rendl ; Betreuer: Christoph Helmberg." Chemnitz : Universitätsbibliothek Chemnitz, 2013. http://d-nb.info/1214245757/34.

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5

Reiß, Susanna [Verfasser], Christoph [Akademischer Betreuer] Helmberg, Christoph [Gutachter] Helmberg, and Monique [Gutachter] Laurent. "Optimizing Extremal Eigenvalues of Weighted Graph Laplacians and Associated Graph Realizations / Susanna Reiß ; Gutachter: Christoph Helmberg, Monique Laurent ; Betreuer: Christoph Helmberg." Chemnitz : Universitätsbibliothek Chemnitz, 2012. http://d-nb.info/121424419X/34.

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6

Gebhardt, René. "Unbounded operators on Hilbert C*-modules: graph regular operators." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-213767.

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Let E and F be Hilbert C*-modules over a C*-algebra A. New classes of (possibly unbounded) operators t: E->F are introduced and investigated - first of all graph regular operators. Instead of the density of the domain D(t) we only assume that t is essentially defined, that is, D(t) has an trivial ortogonal complement. Then t has a well-defined adjoint. We call an essentially defined operator t graph regular if its graph G(t) is orthogonally complemented and orthogonally closed if G(t) coincides with its biorthogonal complement. A theory of these operators and related concepts is developed: pol

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7

Phillips, Jamie. "Graphs associated with sporadic group geometries, and the semisimple elements of E8(2)." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/graphs-associated-with-sporadic-group-geometries-and-the-semisimple-elements-of-e82(4e0d4eae-4fc5-472b-a564-a6ffe20fdb88).html.

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This thesis studies collinearity graphs and commuting involution graphs associated with sporadic group geometries, and the conjugacy classes of semisimple elements in the exceptional Lie-type group E8(2).First we construct plane-line collinearity graphs for the sporadic simple groups and their associated minimal and maximal 2-local parabolic geometries. For such a group and geometry, the plane-line collinearity graph takes all planes of the geometry as its vertices and joins two vertices with an edge if their planes are collinear in the geometry. We construct these graphs for the groups M23, J

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8

Schulte-Sasse, Roman [Verfasser]. "Integration of multi-omics data with graph convolutional networks to identify cancer-associated genes / Roman Schulte-Sasse." Berlin : Freie Universität Berlin, 2021. http://nbn-resolving.de/urn:nbn:de:kobv:188-refubium-31311-1.

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9

Iijima, Yu. "Some group-theoretic aspects of outer Galois representations associated to hyperbolic curves." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199078.

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10

V, Kushnir O. "Exponential Functions as Mathematical Models." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/50740.

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1. Higher mathematics: manual / V. P. Denisiuk, V. M. Bobkov, L. I. Grishina and others. –K. : NAU, 2006. – Part 1. – 268 p. 2. Larson R. College Algebra / R. Larson, R. Hosteller. – Houghton Mifflin, 1997. – 545 p. 3. Mizrahi A. Calculus and Analytic Geometry / A. Mizrahi, M. Sullivan. – California: Wadsmonth Publishing Company, 1987. – 1083 p.<br>Exponential functions are useful in modeling many physical phenomena, such as populations, interest rates, radioactive decay, and the amount of medicine in the bloodstream. An exponential model is of the form A = A_0×bˆ(t/c) , w

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11

Imbert, Baptiste. "Application of translational research to the study of biological functions associated with stress resistance and adaptation to agroecological cropping systems in pulses." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCK085.

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L'insertion des légumineuses à graines dans les systèmes agricoles est un enjeu majeur de la transition alimentaire et écologique actuelle. En effet, ces cultures constituent une source durable de protéines et leur symbiose avec des bactéries du sol capables de fixer l'azote atmosphérique permet de réduire l’utilisation d’engrais azotés. Cependant, elles sont affectées par de nombreux stress biotiques et abiotiques impactant directement leur production, en particulier dans les systèmes agroécologiques. De nombreuses données sur la tolérance aux stress ont d'abord été acquises sur les espèces l

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12

Júnior, João Roberto Bertini. "Classificação de dados estacionários e não estacionários baseada em grafos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-15032011-102039/.

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Métodos baseados em grafos consistem em uma poderosa forma de representação e abstração de dados que proporcionam, dentre outras vantagens, representar relações topológicas, visualizar estruturas, representar grupos de dados com formatos distintos, bem como, fornecer medidas alternativas para caracterizar os dados. Esse tipo de abordagem tem sido cada vez mais considerada para solucionar problemas de aprendizado de máquina, principalmente no aprendizado não supervisionado, como agrupamento de dados, e mais recentemente, no aprendizado semissupervisionado. No aprendizado supervisionado, por out

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13

Dirino, Kariny de Andrade. "Um estudo sobre álgebras associadas a alguns grafos orientados em níveis." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/7784.

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Анотація:

Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-09-22T11:27:19Z No. of bitstreams: 2 Dissertação - Kariny de Andrade Dirino - 2017.pdf: 1986993 bytes, checksum: fd843aaf3aee361fd3b4dd512828d8f0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-09-22T11:27:47Z (GMT) No. of bitstreams: 2 Dissertação - Kariny de Andrade Dirino - 2017.pdf: 1986993 bytes, checksum: fd843aaf3aee361fd3b4dd512828d8f0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<

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14

Ahmad, Imtiaz. "Bandwidth labelling of graphs and their associated semigroups." Thesis, University of Essex, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.536983.

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15

Nenashev, Gleb. "On a class of commutative algebras associated to graphs." Licentiate thesis, Stockholms universitet, Matematiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-132987.

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In 2004 Alexander Postnikov and Boris Shapiro introduced a class of commutative algebras for non-directed graphs. There are two main types of such algebras, algebras of the first type count spanning trees and algebras of the second type count spanning forests. These algebras have a number of interesting properties including an explicit formula for their Hilbert series. In this thesis we mainly work with the second type of algebras, we discover more properties of the original algebra and construct a few generalizations. In particular we prove that the algebra counting forests depends only on g

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16

Portakal, Irem [Verfasser]. "Rigidity of toric varieties associated to bipartite graphs / Irem Portakal." Berlin : Freie Universität Berlin, 2018. http://d-nb.info/1196803293/34.

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17

Wright, Benjamin. "Graphs associated with the sporadic simple groups Fi₂₄ and BM." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/graphs-associated-with-the-sporadic-simple-groups-fi24-and-bm(dcdd493b-929d-4f91-a6bc-48c6b5fda3ba).html.

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Our aim is to calculate some graphs associated with two of the larger sporadicsimple groups, Fi₂₄ and the Baby Monster. Firstly we calculate the point line collinearity graph for a maximal 2-local geometry of Fi₂₄. If T is such a geometry, then the point line collinearity graph G will be the graph whose vertices are the points in T, with any two vertices joined by an edge if and only if they are incident with a common line. We found that the graph has diameter 5 and we give its collapsed adjacency matrix. We also calculate part of the commuting involution graph, C, for the class 2C of the Baby

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18

Rijal, Jhalendra P. "Environmental and behavioral factors associated with the infestation of vineyards by larvae of grape root borer." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/46871.

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Grape root borer, Vitacea polistiformis (Harris), is an oligophagous pest of grapevines in the eastern USA. Neonates must burrow into the soil to find grape roots. In Virginia, larvae feed on roots for ~2 years, then pupate just beneath the soil surface. Emerging adults leave an empty pupal exuviae at the soil surface around the vine base. There was no relationship between weekly captures in pheromone traps and pupal exuviae counts, indicating that exuviae sampling is most appropriate to assess infestations. Exuviae sampling in Virginia vineyards revealed infestations that ranged from light to

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19

Ishi, Soares de Lima Leandro. "De novo algorithms to identify patterns associated with biological events in de Bruijn graphs built from NGS data." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1055/document.

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L'objectif principal de cette thèse est le développement, l'amélioration et l'évaluation de méthodes de traitement de données massives de séquençage, principalement des lectures de séquençage d'ARN courtes et longues, pour éventuellement aider la communauté à répondre à certaines questions biologiques, en particulier dans les contextes de transcriptomique et d'épissage alternatif. Notre objectif initial était de développer des méthodes pour traiter les données d'ARN-seq de deuxième génération à l'aide de graphes de De Bruijn afin de contribuer à la littérature sur l'épissage alternatif, qui a

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20

Jones, Taylor J. "Documentation of grapevine leafroll-associated viruses in wine grape varieties and native grape species in Virginia, and examination of the movement of grapevine leafroll disease to develop management strategies." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/49567.

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Grapevine leafroll-associated virus-2 (GLRaV-2), GLRaV-3, and grapevine fleck virus (GFkV) are widespread in grapes around the world. These viruses can cause significant crop loss and affect wine quality by reducing sugar accumulation and compromising skin color. Mealybugs are vectors of grapevine leafroll-associated viruses (GLRaVs). A statewide survey of commercial and wild grapevines in Virginia was conducted during 2009 through 2011. Also, vector management options were tested in two field studies. GLRaV-2, GLRaV-3, and GFkV were detected in 8%, 25%, and 1%, respectively, of over 1,200 vin

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21

Pons, Vila Zara. "Effect of grape-seed polyphenols in endothelial dysfunction and hypertension associated with metabolic syndrome in cafeteria diet-fed rats." Doctoral thesis, Universitat Rovira i Virgili, 2016. http://hdl.handle.net/10803/348871.

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Els polifenols presents a la dieta s’han estudiat extensament pel seus efectes positius sobre diferents components de la síndrome metabòlica (MetS). En aquesta Tesi, es va proposar avaluar els efecte beneficiós dels polifenols de pinyol de raïm sobre la disfunció endotelial i la hipertensió (HTN) associada a la MetS, utilitzant el model de dieta de cafeteria com a model de MetS. Els resultats mostraren que una dosi aguda de 375 mg/Kg d’un extracte de polifenols de baix pes molecular de pinyol de raïm (LM-GSPE) 6 hores post- administració va ser la més efectiva per a baixar la pressió

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22

Spies, Alexander [Verfasser], Catherine [Akademischer Betreuer] Meusburger, and Catherine [Gutachter] Meusburger. "Poisson Analogues of Kitaev Models and Poisson Structures Associated with Ribbon Graphs / Alexander Spies ; Gutachter: Catherine Meusburger ; Betreuer: Catherine Meusburger." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2020. http://d-nb.info/1222267918/34.

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23

White, Chana-Lee. "The characterization of the basidiomycetes and other fungi associated with esca of grapevines in South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5319.

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Thesis (MSc (Plant Pathology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Esca is a disease affecting grapevines and is potentially devastating as there are economic losses due to a decrease in yield, wine quality and berry quality. Vineyards also need to be replaced earlier and therefore esca has a great impact on the wine, table grape and raisin industries. The disease is known to affect vineyards worldwide and has been studied extensively in Europe, but not in South Africa. Esca diseased grapevines were observed for the first time prior to 1981 in South African vineyards.

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24

Teles, Cesar Simas 1974. "Storage of seedless table grapes exposed to high CO2 concentrations for short period followed by controlled atmosphere, associated or not with pre-harvest application of CaCI2 or CIO2 = Conservação de uvas apirências submetidas a curta exposição de altas concentrações de CO2, seguida de armazenamento sob atmosfera controlada, associada ou não à aplicação de CaCI2 ou CIO2 na pré colheita." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256783.

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Orientador: Benedito Carlos Benedetti<br>Texto em português e Inglês<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola<br>Made available in DSpace on 2018-08-23T16:23:18Z (GMT). No. of bitstreams: 1 Teles_CesarSimas_D.pdf: 1939088 bytes, checksum: 585b37a053cde7606fc6da4a9aa803dc (MD5) Previous issue date: 2013<br>Resumo: Botrytis cinerea Pers, causador da doença conhecida como mofo cinzento, é o principal problema para a conservação pós-colheita de uvas de mesa. A utilização do dióxido de enxofre (SO2) é a prática pós-colheita mais comum para o contro

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25

Africa, Luan Dane. "HIV-1 associated neuroinflammation : effects of two complimentary medicines illustrated in an in vitro model of the blood-brain barrier." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95869.

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Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Background: Neuroinflammation is central to the aetiology of HIV-associated neurocognitive disorders (HAND) that are prevalent in late stage AIDS. ARV treatments are rolled out relatively late in the context of neuroinflammatory changes, so that their usefulness in directly preventing HAND is probably limited. It is common practice for HIV+ individuals in developing countries to make use of traditional/complimentary medicines. One such medicine is Sutherlandia frutescens - commonly consumed as a water infusion. We have also iden

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26

Vogt-Hrabak, Elisabeth Ingeborg [Verfasser], Rudi F. [Akademischer Betreuer] Vogel, Rudi F. [Gutachter] Vogel, and Siegfried [Gutachter] Scherer. "Influence of grape-associated filamentous fungi and their exoproteome on the gushing in sparkling wine / Elisabeth Ingeborg Vogt-Hrabak ; Gutachter: Rudi F. Vogel, Siegfried Scherer ; Betreuer: Rudi F. Vogel." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1153122448/34.

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27

Vogt-Hrabak, Elisabeth Ingeborg Verfasser], Rudi F. [Akademischer Betreuer] [Vogel, Rudi F. [Gutachter] Vogel, and Siegfried [Gutachter] Scherer. "Influence of grape-associated filamentous fungi and their exoproteome on the gushing in sparkling wine / Elisabeth Ingeborg Vogt-Hrabak ; Gutachter: Rudi F. Vogel, Siegfried Scherer ; Betreuer: Rudi F. Vogel." München : Universitätsbibliothek der TU München, 2018. http://nbn-resolving.de/urn:nbn:de:bvb:91-diss-20180130-1395071-1-7.

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28

Smit, Nicoleen. "A real-time RT-PCR assay for the detection and quantification of grape-vine leaf-roll-associated virus 3 (GLRa-3) in Vitus vinifera (Vitaceae) and Planococcus ficus (Signoret) (Hemiptera: Pseudococcidae)." Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-10212009-164856.

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29

Sims, Aidan. "C*-algebras associated to higher-rank graphs." Diss., 2003. http://www.newcastle.edu.au/service/library/adt/public/adt-NNCU20060327.122628/index.html.

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30

Doryn, Dzmitry [Verfasser]. "Cohomology of graph hypersurfaces associated to certain Feynman graphs / von Dzmitry Doryn." 2009. http://d-nb.info/992917425/34.

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31

Sims, Aidan Dominic. "C*-algebras associated to higher-rank graphs." Thesis, 2003. http://hdl.handle.net/1959.13/31872.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Directed graphs are combinatorial objects used to model networks like fluid-flow systems in which the direction of movement through the network is important. In 1980, Enomoto and Watatani used finite directed graphs to provide an intuitive framework for the Cuntz-Krieger algebras introduced by Cuntz and Krieger earlier in the same year. The theory of the C*-algebras of directed graphs has since been extended to include infinite graphs, and there is an elegant relationship between connectivity and loops in a graph and the structure theory of th

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32

Sims, Aidan Dominic. "C*-algebras associated to higher-rank graphs." 2003. http://hdl.handle.net/1959.13/31872.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Directed graphs are combinatorial objects used to model networks like fluid-flow systems in which the direction of movement through the network is important. In 1980, Enomoto and Watatani used finite directed graphs to provide an intuitive framework for the Cuntz-Krieger algebras introduced by Cuntz and Krieger earlier in the same year. The theory of the C*-algebras of directed graphs has since been extended to include infinite graphs, and there is an elegant relationship between connectivity and loops in a graph and the structure theory of th

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33

Klem, Estiaan Murrell. "Non-chordal patterns associated with the positive definite completion problem / Estiaan Murrell Klem." Thesis, 2015. http://hdl.handle.net/10394/15334.

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A partial matrix, is a matrix for which some entries are specified and some unspecified. In general completion problems ask whether a given partial matrix, may be completed to a matrix where all the entries are specified, such that this completion admits a specific structure. The positive definite completion problem asks whether a partial Hermitian matrix admits a completion such that the completed matrix is positive semidefinite. The minimum solution criterion, is that every fully specified principal submatrix is nonnegative. Then the set of partial Hermitian matrices, which admit a positive

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34

Wu, Si-Hao, and 吳熹皓. "On Antimagic Labeling and Associated Deficiency Problems for Graph Products." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/63022945915684492646.

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碩士<br>國立交通大學<br>應用數學系所<br>102<br>Let G = (V(G),E(G)) be a finite simple graph with p = |V (G)| vertices and q = |E(G)| edges. An antimagic labeling of G is a bijection from the set of edges to the set of integers {1,2,...,q} such that the vertex sums are pairwise distinct, where the vertex sum at a vertex is the sum of labels of all edges incident to such vertex. Moreover G is called (a,d)-antimagic if the vertex sums are a,a+d,...,a+(|V|-1)d for some positive integers a and d. For the graph G, the (a,d)-antimagic deficiency (antimagic deficiency, respectively) is defined as the minimum intege

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35

Durocher, Stéphane. "Graph-theoretic and geometric algorithms associated with moment-based polygon reconstruction." Thesis, 1999. http://hdl.handle.net/2429/9688.

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The problem of reconstructing an unknown polygonal shape P, viewed as a region in the complex plane, from a finite number of its complex moments is motivated by a number of mathematical, computational, and application-oriented considerations. Complex moment information can be derived from such diverse physical processes as tomographic (line integral) measurement, exterior gravitational, or magnetic field measurement, or thermal radiation measurement, associated with an otherwise unspecified object [GMV99, M V K W 9 5 , SB86]. Milanfar et al. [MVKW95], building on earlier work of Davis [

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NGUYEN, BICH VAN. "Characteristic polynomials, associated to the energy graph of the non-linear Schrodinger equation." Doctoral thesis, 2012. http://hdl.handle.net/11573/917021.

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We study the irreducibility and the separation of characteristic polynomials, associated to the energy graph of the non-linear Schrodinger equation. This fact will be useful in the study of stability of a class of normal forms of the completely resonant non-linear Schrodinger equation on a torus, described in a recent work by M. Procesi and C. Procesi. The problem can be also considered as an independent interesting algebraic combinatorial problem.

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NGUYEN, BICH VAN. "Characteristic polynomials, associated to the energy graph of the non-linear Schrodinger equation." Doctoral thesis, 2012. http://hdl.handle.net/11573/917269.

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We study the irreducibility and the separation of characteristic polynomials, associated to the energy graph of the non-linear Schrodinger equation. This fact will be useful in the study of stability of a class of normal forms of the completely resonant non-linear Schrodinger equation on a torus, described in a recent work by M. Procesi and C. Procesi. The problem can be also considered as an independent interesting algebraic combinatorial problem.

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Yi, Ching Kang, and 易敬剛. "Graph-based vulnerability analyses on power grid and associated protection strategies against cascading failures." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/00490793488307534987.

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碩士<br>國立政治大學<br>應用物理研究所<br>101<br>From blackout events in history, we know the damage of a few substations or transmission lines can lead to a big blackout, and the robustness of power grids are always a great concern. Recently the topological analyses of power grid network have developed rapidly and its achievements have become a center of attention. This thesis aims to investigate the vulnerability of Taiwan’s power grid through topological analyses and propose a novel protection strategy. This thesis introduces three methods to investigate the vulnerability of Taiwan’s power grid. The

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Dietrich, Heiko [Verfasser]. "Periodic structures in the graph associated with p-groups of maximal class / von Heiko Dietrich." 2009. http://d-nb.info/995672326/34.

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"C*-Correspondences and Topological Dynamical Systems Associated to Generalizations of Directed Graphs." Doctoral diss., 2011. http://hdl.handle.net/2286/R.I.9202.

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abstract: In this thesis, I investigate the C*-algebras and related constructions that arise from combinatorial structures such as directed graphs and their generalizations. I give a complete characterization of the C*-correspondences associated to directed graphs as well as results about obstructions to a similar characterization of these objects for generalizations of directed graphs. Viewing the higher-dimensional analogues of directed graphs through the lens of product systems, I give a rigorous proof that topological k-graphs are essentially product systems over N^k of topological graphs.

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Oliveira, Jorge Miguel Gomes. "Automatic detection of drusen associated with age-related macular degeneration in optical coherence tomography: a graph-based approach." Doctoral thesis, 2019. http://hdl.handle.net/1822/65707.

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Tese de Doutoramento em Líderes para Indústrias Tecnológicas<br>The age-related macular degeneration (AMD) starts to manifest itself with the appearance of drusen. Progressively, the drusen increase in size and in number without causing alterations to vision. Nonetheless, their quantification is important because it correlates with the evolution of the disease to an advanced stage, which could lead to the loss of central vision. Manual quantification of drusen is impractical, since it is time-consuming and it requires specialized knowledge. Therefore, this work proposes a method for quantifyin

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Gebhardt, René. "Unbounded operators on Hilbert C*-modules: graph regular operators." Doctoral thesis, 2015. https://ul.qucosa.de/id/qucosa%3A15095.

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Let E and F be Hilbert C*-modules over a C*-algebra A. New classes of (possibly unbounded) operators t: E->F are introduced and investigated - first of all graph regular operators. Instead of the density of the domain D(t) we only assume that t is essentially defined, that is, D(t) has an trivial ortogonal complement. Then t has a well-defined adjoint. We call an essentially defined operator t graph regular if its graph G(t) is orthogonally complemented and orthogonally closed if G(t) coincides with its biorthogonal complement. A theory of these operators and related concepts is developed: pol

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Lin, Yi-nong, and 林翊農. "Note on graphs associated to semigroups." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/95605930121165497569.

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"Symbolic Powers of Squarefree Monomial Ideals Associated to Graphs." Tulane University, 2021.

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吳介友. "A Study of Graphs and Multigraphs Associated with Various Designs." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/00840502185553188270.

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碩士<br>國立交通大學<br>應用數學系所<br>95<br>The notion of strongly regular multigraphs was first introduced by R. C. Bose, followed by Neumaier for characterizing quasi-residual 2-designs, and further by Metsch for embeddings of residual 2-designs. Recently, the notion of partial geometric designs was also used by van Dam and Spence over combinatorial designs with two singular values. The basic de‾nitions and most results regarding strongly regular multigraphs and partial geometric designs covered in the works of Neumaier and Metsch are given in a uni‾ed way in this thesis. The associated multigraphs or g

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Dancso, Zsuzsanna. "On a Universal Finite Type Invariant of Knotted Trivalent Graphs." Thesis, 2011. http://hdl.handle.net/1807/31731.

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Knot theory is not generally considered an algebraic subject, due to the fact that knots don’t have much algebraic structure: there are a few operations defined on them (such as connected sum and cabling), but these don’t nearly make the space of knots finitely generated. In this thesis, following an idea of Dror Bar-Natan’s, we develop an algebraic setting for knot theory by considering the larger, richer space of knotted trivalent graphs (KTGs), which includes knots and links. KTGs along with standard operations defined on them form a finitely generated algebraic structure, in which many top

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Hung, Yi-Chieh, and 洪屹傑. "A model of Sturm-Liouville operators defined on graphs and the associated Ambarzumyan problem." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/v9ezk8.

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碩士<br>國立中山大學<br>應用數學系研究所<br>96<br>In this thesis, we study the Pokornyi''s model of a Sturm-Liouville operator defined on graphs. The model, proposed by Pokornyi and Pryadiev in 2004, is derived from the consideration of minimal energy of a system of interlocking springs oscillating in a medium with resistance. Here the system of springs is defined as a graph $Gamma$ with edges $R(Gamma)={gamma_i:i=1,dots,n}$ and set of internal vertices $J(Gamma)$. Let $partialGamma$ denote the set of boundary vertices of $Gamma$. For each vertex ${ f v}in J(Gamma)$, we let $Gamma({ f v})={gamma_iin R(Gamma):

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Pimentel, Diana Margarida Alpoim de Andrade. "The influence of kaolin application on key metabolic pathways associated with grape berry quality: a molecular and biochemical analysis." Master's thesis, 2015. http://hdl.handle.net/1822/39708.

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Dissertação de mestrado em Biologia Molecular, Biotecnologia e Bioempreendedorismo em Plantas<br>Grapevine (Vitis vinifera L.) is a perennial woody plant with huge importance in national and global economy, widely grown in areas with typical Mediterranean climates, such as the Douro Demarcated Region (Denomination of Origin Douro/Porto). This region is usually affected by extended dry and hot summers that lead to productivity issues and are thus a main concern to viticulturists. The exogenous application of kaolin, an inert mineral that reflects ultraviolet and infrared radiation but not photo

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LORENZINI, Marilinda. "A study on the yeast and mould biota associated with the production of Italian wines from post-harvest dried grapes." Doctoral thesis, 2012. http://hdl.handle.net/11562/394130.

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I vini Passiti ottenuti da uve che hanno subito un processo di appassimento sono vini rinomati e apprezzati dai consumatori principalmente per le complesse note sensoriali dovute al particolare processo di vinificazione. La fase di sovra-maturazione è fortemente influenzata dai microrganismi presenti sull’acino e in particolare da Botrytis cinerea in forma nobile. La presenza di questa muffa favorisce la disidratazione dell’acino e modifica la composizione del mosto che, infatti, presenta un elevato tenore zuccherino e contiene metaboliti secondari prodotti dalla muffa che possono inibire il p

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