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Journal articles on the topic '4/3 Problem'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

A., Chubykalo, Espinoza A., Kuligin V., and Korneva M. "ONCE AGAIN ABOUT THE PROBLEM "4/3"." International Journal of Engineering Technologies and Management Research 6, no. 6 (2019): 178–96. https://doi.org/10.5281/zenodo.3271356.

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It is shown that the problem "4/3" or the problem of electromagnetic mass has a strict solution only if the fields are instantaneous. This result is valid in both the classical and relativistic variants. The hypothesis of the existence of a physical ether is introduced, which allows us to explain the constancy of the speed of light in inertial reference systems and features of instantaneous action at a distance.

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2

Frenkel, J. "4/3 problem in classical electrodynamics." Physical Review E 54, no. 5 (1996): 5859–62. http://dx.doi.org/10.1103/physreve.54.5859.

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A. Chubykalo, A. Espinoza, V. Kuligin, and M. Korneva. "ONCE AGAIN ABOUT THE PROBLEM “4/3”." International Journal of Engineering Technologies and Management Research 6, no. 6 (2020): 178–96. http://dx.doi.org/10.29121/ijetmr.v6.i6.2019.407.

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It is shown that the problem "4/3" or the problem of electromagnetic mass has a strict solution only if the fields are instantaneous. This result is valid in both the classical and relativistic variants. The hypothesis of the existence of a physical ether is introduced, which allows us to explain the constancy of the speed of light in inertial reference systems and features of instantaneous action at a distance.

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4

Fedosin, Sergey G. "4/3 Problem for the Gravitational Field." Advances in Physics Theories and Applications 23 (October 24, 2013): 19–25. https://doi.org/10.5281/zenodo.889383.

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The gravitational field potentials outside and inside a uniform massive ball were determined using the superposition principle, the method of retarded potentials and Lorentz transformations. The gravitational field strength, the torsion field, the energy and the momentum of the field, as well as the effective masses associated with the field energy and its momentum were calculated. It was shown that 4/3 problem existed for the gravitational field as well as in the case of the electromagnetic field.

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5

Nishi, Okihiro. "Cataract surgical problem: Reply 4." Journal of Cataract & Refractive Surgery 28, no. 4 (2002): 581. http://dx.doi.org/10.1016/s0886-3350(02)01285-3.

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6

Gavrea, Ioan. "On Butzer's Problem, Volume 90, Issue 3–4, 2011." Applicable Analysis 92, no. 11 (2013): 2438. http://dx.doi.org/10.1080/00036811.2012.729709.

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Güell, José L. "Refractive surgical problem: response #3." Journal of Cataract & Refractive Surgery 26, no. 11 (2000): 1574. http://dx.doi.org/10.1016/s0886-3350(00)00712-4.

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8

Daverman, Robert J., and Thomas L. Thickstun. "The 3-manifold recognition problem." Transactions of the American Mathematical Society 358, no. 12 (2006): 5257–71. http://dx.doi.org/10.1090/s0002-9947-05-03786-4.

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9

Guberina, Antonija, and Nikola Koceić Bilan. "Generalizirani Apolonijev problem." Acta mathematica Spalatensia. Series didactica 2, no. 2 (2019): 67–91. http://dx.doi.org/10.32817/amssd.2.2.4.

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Apolonijev problem glasi: "Konstruiraj kružnicu koja dodiruje tri zadane kružnice". U uvodnom dijelu definiramo Apolonijev problem reda n i na taj ga način generaliziramo. U nastavku rada posebno promatramo sve Apolonijeve probleme reda 1, 2 i 3 te određujemo geometrijsko mjesto središta (GMS) rješenja što je posebno interesantno za Apolonijeve probleme reda 2 jer se kao GMS javljaju konike pa na takav način dobivamo alternativnu definiciju konika. Važno je istaknuti da se kao GMS rješenja Apolonijevih problema reda 3, između ostaloga, javljaju presjeci 3 konike, 2 konike i pravca, koji su, pr

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Fjærestad, J. O. "The 3-edge-colouring problem on the 4–8 and 3–12 lattices." Journal of Statistical Mechanics: Theory and Experiment 2010, no. 01 (2010): P01004. http://dx.doi.org/10.1088/1742-5468/2010/01/p01004.

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11

Comay, E. "Lorentz Transformation of Electromagnetic Systems and the 4/3 Problem." Zeitschrift für Naturforschung A 46, no. 5 (1991): 377–83. http://dx.doi.org/10.1515/zna-1991-0501.

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AbstractLorentz transformations of two macroscopic devices are discussed. In each case, the overall momentum flux into every static element of matter vanishes. It is shown that a Lorentz transformation of the energy-momentum 4-vector of each system agrees with special relativity. In particular, using the ordinary definition of 4-momentum of electromagnetic fields, it is proved by means of a particular form of Poincare's stress tensor, that there is no 4/3 factor in the transformation of the entire momentum of a uniformly charged spherical shell

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12

Kholmetskii, Alexander L., Oleg V. Missevitch, and Tolga Yarman. "4/3 problem, Poynting theorem, and electromagnetic energy–momentum tensor." Canadian Journal of Physics 93, no. 6 (2015): 691–97. http://dx.doi.org/10.1139/cjp-2014-0533.

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13

Danziger, Peter, Gaetano Quattrocchi, and Brett Stevens. "The Hamilton-Waterloo problem for cycle sizes 3 and 4." Journal of Combinatorial Designs 17, no. 4 (2009): 342–52. http://dx.doi.org/10.1002/jcd.20219.

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14

Gorbachev, D. V., and I. A. Martyanov. "Delsarte problem for 4-designs on the unit 3-sphere." Chebyshevskii Sbornik 23, no. 4 (2022): 157–61. http://dx.doi.org/10.22405/2226-8383-2022-23-4-157-161.

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15

Amano, Yuki, and Kazuhisa Makino. "A 3/4 differential approximation algorithm for traveling salesman problem." Theoretical Computer Science 1053 (October 2025): 115435. https://doi.org/10.1016/j.tcs.2025.115435.

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16

Fedosin, Sergey G. "The generalized Poynting theorem for the general field and solution of the 4/3 problem." International Frontier Science Letters 14 (March 1, 2019): 19–40. https://doi.org/10.18052/www.scipress.com/IFSL.14.19.

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The generalized Poynting theorem is applied to the equilibrium system of particles, both inside and outside the system. The particles are bound to each other by means of the electromagnetic and gravitational fields, acceleration field and pressure field. As a result, the correlation is found between the acceleration field coefficient, the pressure field coefficient, the gravitational constant and the vacuum permittivity. This correlation also depends on the ratio of the charge density to the mass density of the particles inside the sphere. Due to the correlation between the given field coeffic

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Shamolin, M. V. "PROBLEMS OF DIFFERENTIAL AND TOPOLOGICAL DIAGNOSTICS. PART 3. THE CHECKING PROBLEM." Vestnik of Samara University. Natural Science Series 25, no. 4 (2019): 36. http://dx.doi.org/10.18287/2541-7525-2019-25-4-36-47.

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Choi, G., R. Bahirwani, and K. R. Reddy. "Hepatitis C Genotype 3: The Remaining Problem." Current Hepatology Reports 14, no. 4 (2015): 267–73. http://dx.doi.org/10.1007/s11901-015-0284-4.

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19

DIN, UMMUL KHAIR SALMA, FUDZIAH ISMAIL, ZANARIAH ABDUL MAJID, and ROKIAH ROZITA AHMAD. "SOLVING MEDICAL AKZO NOBEL PROBLEM USING FUNCTIONAL LOAD BALANCING ALGORITHM OF 4(3) DIRK METHOD." International Journal of Modern Physics: Conference Series 09 (January 2012): 480–87. http://dx.doi.org/10.1142/s2010194512005569.

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Medical Akzo Nobel problem (MEDAKZO) is known for its tenancy of incurring high computational cost. Originates from the penetration of radio-labeled antibodies into a tissue that has been infected by a tumor, the problem has been derived from a one dimensional partial differential equations to a two dimensional ordinary differential equations thus generates a large scale of problem to be solved. This paper presents the performance of a new 4(3) diagonally implicit Runge-Kutta (DIRK) method which is suitable to excellently solve MEDAKZO problem that is stiff in nature. The sparsity pattern desi

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Goemans, Michel X., and David P. Williamson. "New $\frac{3}{4}$-Approximation Algorithms for the Maximum Satisfiability Problem." SIAM Journal on Discrete Mathematics 7, no. 4 (1994): 656–66. http://dx.doi.org/10.1137/s0895480192243516.

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21

Johnson, Charles R., Drew Lewis, and YuLin Zhang. "ARBITRARINESS OF JORDAN STRUCTURE IN FACTORIZATION: THE GEOMETRIC MULTIPLICITY RESTRICTION AND THE 3 × 3 CASE." Asian-European Journal of Mathematics 05, no. 03 (2012): 1250036. http://dx.doi.org/10.1142/s1793557112500362.

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For the problem of which Jordan forms are possible for n × n complex matrices A, B and C, when A = BC, geometric multiplicity restrictions are given for the eigenvalues of the three matrices. Together with the obvious determinantal condition on the eigenvalues, these necessary conditions are shown to be sufficient for the problem when n < 4, but not for n ≥ 4. Some basic observations about the problem are given in the process.

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22

Ahmad Faqih Sadewa, Lulu Farahdina, Muhammad Charvian Faiz, and Nisrina Fedora Apsarini. "Strategi Optimal Peletakan Titik Pembuangan Sampah di Tepian Sungai Musi Kelurahan 3-4 Ulu." Archvisual: Jurnal Arsitektur dan Perencanaan 3, no. 2 (2024): 101–9. https://doi.org/10.55300/xdfkq509.

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The problem of waste in dense settlements on river banks is one of the problems that has not been resolved to date. The increase in the amount of waste is not accompanied by the land area available for waste facilities and infrastructure, resulting in deviations in handling waste by dumping it into rivers. Proper handling of this problem can reduce the impact that occurs. One of the sub-districts in Palembang City facing this problem is Sub-district 3-4 Ulu, which directly borders The Musi River and densely populated settlements right on the banks of The Musi River. The methods used in this re

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23

Bueno, Lucas Moutinho, and Jorge Stolfi. "4-Colored Triangulation of 3-Maps." International Journal of Computational Geometry & Applications 27, no. 04 (2017): 297–325. http://dx.doi.org/10.1142/s0218195917500091.

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We describe an algorithm to triangulate a general 3-dimensional-map on an arbitrary space in such way that the resulting 3-dimensional triangulation is vertex-colorable with four colors. (Four-colorable triangulations can be efficiently represented and manipulated by the GEM data structure of Montagner and Stolfi.) The standard solution to this problem is the barycentric subdivision (BCS) of the map. Our algorithm yields a 4-colored triangulation that is provably smaller than the BCS, and in practice is often a small fraction of its size. When the input map is a shellable triangulation of a 3-

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24

Bennett, Michael A. "Lucas' square pyramid problem revisited." Acta Arithmetica 105, no. 4 (2002): 341–47. http://dx.doi.org/10.4064/aa105-4-3.

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25

Ghazi, Nour. "On the Beckmann–Black problem." Acta Arithmetica 149, no. 3 (2011): 265–74. http://dx.doi.org/10.4064/aa149-3-4.

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26

Fedosin, Sergey G. "The integral energy-momentum 4-vector and analysis of 4/3 problem based on the pressure field and acceleration field." American Journal of Modern Physics 3, no. 4 (2014): 152–67. https://doi.org/10.11648/j.ajmp.20140304.12.

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As a result of integration of the equations of motion with regard to the pressure field and acceleration field the system’s integral energy-momentum 4-vector is found. It is shown that this vector in the covariant theory of gravitation must be equal to zero. This allows us to explain the 4/3 problem and the problem of neutrino energy in an ideal spherical supernova collapse. At the same time, in order to describe the system’s state, instead of the integral 4-vector we must use the four-momentum, which is derived from the Lagrangian. The described approach differs substantially from the results

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27

Hernández-Garduño, Antonio, and Ernesto A. Lacomba. "Collisions and Regularization for the 3-Vortex Problem." Journal of Mathematical Fluid Mechanics 9, no. 1 (2005): 75–86. http://dx.doi.org/10.1007/s00021-005-0192-4.

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28

Ishak, Suryadi, and Irmayanti Irmayanti. "Perbandingan Kemampuan Menyelesaikan Masalah Matematika Pada Peserta Didik Laki-Laki Dan Perempuan Kelas VIII A SMP Negeri 4 Mamuju." Pepatudzu : Media Pendidikan dan Sosial Kemasyarakatan 14, no. 2 (2019): 172. http://dx.doi.org/10.35329/fkip.v14i2.201.

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This research is a qualitative descriptive study that aims to compare the ability of male and female students to solve mathematical problems in a two-variable linear equation system. The subjects of this study were 19th grade students A VII from Mamuju Middle School as many as 19 people, then 6 students were taken, consisting of 3 men and 3 women. The results showed that students with high ability categories; (1) able to understand problems; (2) able to complete planning; (3) able to solve problems; (4) can use existing information to re-examine the answers obtained. Whereas in problem solving

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29

Daniels, Jonathan S., David Moreau, and Brooke N. Macnamara. "Learning and Transfer in Problem Solving Progressions." Journal of Intelligence 10, no. 4 (2022): 85. http://dx.doi.org/10.3390/jintelligence10040085.

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Do individuals learn more effectively when given progressive or variable problem-solving experience, relative to consistent problem-solving experience? We investigated this question using a Rubik’s Cube paradigm. Participants were randomly assigned to a progression-order condition, where they practiced solving three progressively more difficult Rubik’s Cubes (i.e., 2 × 2 × 2 to 3 × 3 × 3 to 4 × 4 × 4), a variable-order condition, where they practiced solving three Rubik’s Cubes of varying difficulty (e.g., 3 × 3 × 3 to 2 × 2 × 2 to 4 × 4 × 4), or a consistent-order condition, where they consis

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30

BAOULINA, IOULIA. "ON A PROBLEM OF CARLITZ." International Journal of Number Theory 01, no. 02 (2005): 293–307. http://dx.doi.org/10.1142/s1793042105000194.

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Let Nq be the number of solutions to the equation [Formula: see text] over the finite field [Formula: see text]. Carlitz found formulas for Nq when n = 3 or 4. In an earlier paper, we found formulas for Nq when d = gcd (n - 2, q - 1) = 1 or 2 or 3 or 4; and when there exists an l such that pl ≡ -1 (mod d). In another paper the cases d = 7 or 14, p ≡ 2 or 4 (mod 7) were considered. In this paper, we find formulas for Nq when d = 8. We also simplify formulas for Nq when d = 4, p ≡ 1 (mod 4).

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31

Marpaung, Andre, Anton Arifandi, and Eri. "Kerendahan Hati dan Kepedulian Lingkungan: Filipi 2:3-4 Mengatasi Perilaku Membuang Sampah Sembarangan." SCRIPTA: Jurnal Teologi dan Pelayanan Kontekstual 18, no. 2 (2024): 131–43. https://doi.org/10.47154/sjtpk.v18i2.798.

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The purpose of this study is to identify Philippians 2:3-4 as the basis for one's understanding of the importance of caring for others with full devotion. Because the current waste problem is a problem that must be solved. However, the awareness of every policy regarding the dangers of waste is the main problem. For this reason, this article provides an effort to provide awareness about the importance of awareness and concern for this increasingly degraded environment. Philippians 2:3-4 is an example of counsel for all walks of life, where Paul is present to enlighten the Philippians about the

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32

Davoli, Elisa, Paolo Piovano, and Ulisse Stefanelli. "Sharp $$N^{3/4}$$ N 3 / 4 Law for the Minimizers of the Edge-Isoperimetric Problem on the Triangular Lattice." Journal of Nonlinear Science 27, no. 2 (2016): 627–60. http://dx.doi.org/10.1007/s00332-016-9346-1.

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33

Zelenina, Larisa I., D. S. Khripunov, Liudmila E. Khaimina, Evgenii S. Khaimin, and Inga M. Zashikhina. "The Problem of Images’ Classification: Neural Networks." Mathematics and Informatics LXIV, no. 3 (2021): 289–300. http://dx.doi.org/10.53656/math2021-3-4-the.

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The article discusses the employment of an artificial neural network for the problem of image classification. Based on the compiled dataset, a convolutional neural network model was implemented and trained. An application for images classification was created. The practical value of the developed application allows an efficient use of a smartphone camera’s storage facilities. The article presents a detailed methodology of the application’s development.

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Xu, Guangjun, Qiang Sun, and Zuosong Liang. "On Hamiltonian Decomposition Problem of 3-Arc Graphs." Computational Intelligence and Neuroscience 2022 (April 28, 2022): 1–6. http://dx.doi.org/10.1155/2022/5837405.

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A 4-tuple y , x , v , w in a graph is a 3-arc if each of y , x , v and x , v , w is a path. The 3-arc graph of H is the graph with vertex set all arcs of H and edge set containing all edges joining x y and v w whenever y , x , v , w is a 3-arc of H . A Hamilton cycle is a closed path meeting each vertex of a graph. A graph H including a Hamilton cycle is called Hamiltonian and H has a Hamiltonian decomposition provided its edge set admits a partition into disjoint Hamilton cycles (possibly with a single perfect matching). The current paper proves that every connected 3-arc graph consists of mo

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35

Furuya, Jun, and Wenguang Zhai. "On the k-free divisor problem." Acta Arithmetica 123, no. 3 (2006): 267–87. http://dx.doi.org/10.4064/aa123-3-4.

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36

Bouyukliev, Iliya, and Valentin Bakoev. "Efficient Computing of some Vector Operations over GF(3) and GF(4)." Serdica Journal of Computing 2, no. 2 (2008): 137–44. http://dx.doi.org/10.55630/sjc.2008.2.137-144.

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The problem of efficient computing of the affine vector operations (addition of two vectors and multiplication of a vector by a scalar over GF (q)), and also the weight of a given vector, is important for many problems in coding theory, cryptography, VLSI technology etc. In this paper we propose a new way of representing vectors over GF (3) and GF (4) and we describe an efficient performance of these affine operations. Computing weights of binary vectors is also discussed.

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37

Mu, Quanwu, and Liyan Xi. "A Diophantine Problem with Unlike Powers of Primes." Journal of Mathematics 2021 (March 5, 2021): 1–9. http://dx.doi.org/10.1155/2021/5528753.

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Let k be an integer with 4 ≤ k ≤ 6 and η be any real number. Suppose that λ 1 , λ 2 , … , λ 5 are nonzero real numbers, not all of them have the same sign, and λ 1 / λ 2 is irrational. It is proved that the inequality λ 1 p 1 + λ 2 p 2 2 + λ 3 p 3 3 + λ 4 p 4 4 + λ 5 p 5 k + η < max 1 ≤ j ≤ 5 p j − σ k has infinitely many solutions in prime variables p 1 , p 2 , p 3 , p 4 , and p 5 , where 0 < σ 4 < 1 / 36 , 0 < σ 5 < 4 / 189 , and 0 < σ 6 < 1 / 54 . This gives an improvement of the recent results.

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38

BOBTCHEVA, IVELINA, and RICCARDO PIERGALLINI. "ON 4-DIMENSIONAL 2-HANDLEBODIES AND 3-MANIFOLDS." Journal of Knot Theory and Its Ramifications 21, no. 12 (2012): 1250110. http://dx.doi.org/10.1142/s0218216512501106.

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We show that for any n ≥ 4 there exists an equivalence functor [Formula: see text] from the category [Formula: see text] of n-fold connected simple coverings of B3 × [0, 1] branched over ribbon surface tangles up to certain local ribbon moves, and the cobordism category [Formula: see text] of orientable relative 4-dimensional 2-handlebody cobordisms up to 2-deformations. As a consequence, we obtain an equivalence theorem for simple coverings of S3 branched over links, which provides a complete solution to the long-standing Fox–Montesinos covering moves problem. This last result generalizes to

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39

Anjani, Ratna, Nadia Novianti, Cucu Nuraeni, Roudothul Jannah, Siti Winda Mariam Nabila, and Rr Deni Widjayatri. "Pengaruh Media Busy Book Terhadap Kemampuan Pemecahan Masalah Anak Usia 3-4 Tahun." Journal of Early Childhood and Character Education 3, no. 1 (2023): 15–40. http://dx.doi.org/10.21580/joecce.v3i1.12650.

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ABSTRACTThis research is motivated by the problems found in the field, namely the lack of development of problem solving abilities in children aged 3-4 years caused by the lack of availability of learning media. The importance of developing problem-solving skills because children will find problems that must be solved with their problem-solving abilities. Problem solving abilities in children aged 3-4 years include (1) Children are able to complete the tasks given by the teacher; (2) the child understands the concept of the wholeness of an object; (3) the child understands the pattern of the n

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40

Khadiev, Kamil, Carlos Manuel Bosch Machado,, Zeyu Chen, and Junde Wu. "Quantum algorithms for SCS and text assembling problems." Quantum Information & Computation 24, no. 3&4 (2024): 267–94. http://dx.doi.org/10.26421/qic24.3-4-4.

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In this paper, we consider two versions of the Text Assembling problem. We are given a sequence of strings $s^1,\dots,s^n$ of total length $L$ that is a dictionary, and a string $t$ of length $m$ that is a text. The first version of the problem is assembling $t$ from the dictionary. The second version is the ``Shortest Superstring Problem''(SSP) or the ``Shortest Common Superstring Problem''(SCS). In this case, $t$ is not given, and we should construct the shortest string (we call it superstring) that contains each string from the given sequence as a substring.These problems are connected with

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Naisya Ramadhani, Putri Imatriyani Sholekhah, and Ade Yolla Dliaul Aulia. "Analisis Kemampuan Pemecahan Masalah Matematis Siswa Kelas Empat Sd 4 Dersalam Dalam Menyelesaikan Soal Cerita." Student Scientific Creativity Journal 1, no. 5 (2023): 130–39. http://dx.doi.org/10.55606/sscj-amik.v1i5.1953.

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This study aims to describe students' mathematical problem solving skills in solving word problems. The population in this study were all fourth grade students at SD 4 Dersalam with a total sample of 24 students. The research method used is a qualitative approach with descriptive methods. The research instrument used was in the form of test questions (essays) and interview for mathematical problem-solving abilities in diagrammatic material. The data collection technique in this study has three stages of procedure namely; 1) preparation stage, 2) implementation stage, 3) final stage. Based on t

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42

Kurahashi, Takahiko, and Hideki Oshita. "J1202-3-4 Numerical Experiments for 3D Reinforcement Corrosion Shape Estimation Problem." Proceedings of the JSME annual meeting 2010.7 (2010): 315–16. http://dx.doi.org/10.1299/jsmemecjo.2010.7.0_315.

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Jebreen, Haifa Bin, та Lakhdar Ragoub. "On a Hadamard fractional boundary value problem for 3 < α ≤ 4." Journal of Physics: Conference Series 1593 (липень 2020): 012007. http://dx.doi.org/10.1088/1742-6596/1593/1/012007.

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44

Katuuk, Rivaldo Chun, Sylvia J. A. Sumarauw, and Rosiah J. Pulukadang. "Problem Solving Ability of Remboken 1 Middle School Students in Solving Story Problems in Algebraic Form Based on Polya's Steps." Journal of Education Research 5, no. 1 (2024): 180–88. https://doi.org/10.37985/jer.v5i1.691.

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Problem-solving abilities are essential for the development of students' mathematical abilities. This ability must be described clearly to contribute to problem-solving and mathematical problem-solving abilities. This research aimed to describe problem-solving abilities in solving algebraic story problems based on Polya's steps: understanding the problem, formulating a plan, implementing the problem, and checking again. The subjects in this research were three students selected from 12 students in class VII-C at SMP Negeri 1 Remboken, consisting of students with high, medium and low abilities

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45

Dimare, Linda. "Chaotic quasi-collision trajectories in the 3-centre problem." Celestial Mechanics and Dynamical Astronomy 107, no. 4 (2010): 427–49. http://dx.doi.org/10.1007/s10569-010-9284-4.

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Glebov, Roman, Daniel Král’, and Jan Volec. "A problem of Erdős and Sós on 3-graphs." Israel Journal of Mathematics 211, no. 1 (2015): 349–66. http://dx.doi.org/10.1007/s11856-015-1267-4.

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Dwi Aqiella Fadilla Hayya, Mareta Noor Ahadiya, Muhammad Erfansyah, and Fitriyah Amaliyah. "Analisis Pemecahan Masalah Pendidikan Matematis Materi Bilangan Pada Kelas IV SD 4 Karangmalang." ENGGANG: Jurnal Pendidikan, Bahasa, Sastra, Seni, dan Budaya 4, no. 2 (2024): 153–62. http://dx.doi.org/10.37304/enggang.v4i2.14311.

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This study aims to analyze the ability to solve mathematical problems especially in the matter of numbers, as well as classify students' problem-solving abilities. In this study using a qualitative descriptive method. The population of this study were all fourthgrade students at SD 4 Karangmalang with a total sample of 9 students. This study collected data using observation, written tests, interviews and documentation. The written test consists of 5 essay questions in the form of word problems regarding mathematics in learning mathematics. In making written test questions, we use indicators of

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Dussan, M. P., A. P. Franco Filho, and M. Magid. "The Björling problem for timelike minimal surfaces in $${\mathbb {R}}^{4}_{1}$$ R 1 4." Annali di Matematica Pura ed Applicata (1923 -) 196, no. 4 (2016): 1231–49. http://dx.doi.org/10.1007/s10231-016-0614-3.

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Ben Ayed, Mohamed, Yansong Chen, Hichem Chtioui, and Mokhles Hammami. "On the prescribed scalar curvature problem on $4$ -manifolds." Duke Mathematical Journal 84, no. 3 (1996): 633–77. http://dx.doi.org/10.1215/s0012-7094-96-08420-3.

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Irhamna, Irhamna, Zul Amry, and Hermawan Syahputra. "Contribution of Mathematical Anxiety, Learning Motivation and Self-Confidence to Student’s Mathematical Problem Solving." Budapest International Research and Critics in Linguistics and Education (BirLE) Journal 3, no. 4 (2020): 1759–72. http://dx.doi.org/10.33258/birle.v3i4.1343.

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The objectives of this study are to: (1) Analyze whether there is a contribution of mathematics anxiety, learning motivation and self-confidence to the ability to solve mathematical problems simultaneously, (2) Analyze whether there is a contribution of mathematics anxiety, learning motivation and self-confidence to the partial mathematical problem solving ability, (3) To analyze how big the contribution of mathematics anxiety, learning motivation and self-confidence to mathematical problem solving abilities simultaneously, (4) Analyze how much the contribution of mathematics anxiety, learning

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