Literatura académica sobre el tema "Quasi-random hypergraph"
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Artículos de revistas sobre el tema "Quasi-random hypergraph"
Chung, F. R. K. y R. L. Graham. "Quasi-random hypergraphs". Proceedings of the National Academy of Sciences 86, n.º 21 (1 de noviembre de 1989): 8175–77. http://dx.doi.org/10.1073/pnas.86.21.8175.
Texto completoChung, F. R. K. y R. L. Graham. "Quasi-random hypergraphs". Random Structures and Algorithms 1, n.º 1 (1990): 105–24. http://dx.doi.org/10.1002/rsa.3240010108.
Texto completoChung, Fan. "Quasi-random hypergraphs revisited". Random Structures & Algorithms 40, n.º 1 (8 de noviembre de 2011): 39–48. http://dx.doi.org/10.1002/rsa.20388.
Texto completoDing, Laihao, Jie Han, Shumin Sun, Guanghui Wang y Wenling Zhou. "Tiling multipartite hypergraphs in quasi-random hypergraphs". Journal of Combinatorial Theory, Series B 160 (mayo de 2023): 36–65. http://dx.doi.org/10.1016/j.jctb.2022.12.005.
Texto completoChung, Fan R. K. "Quasi-random classes of hypergraphs". Random Structures and Algorithms 1, n.º 4 (1990): 363–82. http://dx.doi.org/10.1002/rsa.3240010401.
Texto completoDellamonica, Domingos y Vojtěch Rödl. "Hereditary quasi-random properties of hypergraphs". Electronic Notes in Discrete Mathematics 34 (agosto de 2009): 495–99. http://dx.doi.org/10.1016/j.endm.2009.07.082.
Texto completoPolcyn, Joanna. "Short paths in 3-uniform quasi-random hypergraphs". Discussiones Mathematicae Graph Theory 24, n.º 3 (2004): 469. http://dx.doi.org/10.7151/dmgt.1245.
Texto completoRödl, Vojtĕch y Jozef Skokan. "Counting subgraphs in quasi-random 4-uniform hypergraphs". Random Structures & Algorithms 26, n.º 1-2 (enero de 2005): 160–203. http://dx.doi.org/10.1002/rsa.20056.
Texto completoBhat, Vindya y Vojtěch Rödl. "Note on Upper Density of Quasi-Random Hypergraphs". Electronic Journal of Combinatorics 20, n.º 2 (15 de junio de 2013). http://dx.doi.org/10.37236/3222.
Texto completoDing, Laihao, Jie Han, Shumin Sun, Guanghui Wang y Wenling Zhou. "F$F$‐factors in Quasi‐random Hypergraphs". Journal of the London Mathematical Society, 2 de mayo de 2022. http://dx.doi.org/10.1112/jlms.12611.
Texto completoTesis sobre el tema "Quasi-random hypergraph"
Zhou, Wenling. "Embedding problems in uniformly dense hypergraphs". Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASG092.
Texto completoGiven a k-graph (k-uniform hypergraph) F, the Turán density π(F) of F is the maximum density among all F-free k-graphs. Determining π(F) for a given k-graph F is a classical extremal problem. Given two k-graphs F and H, a perfect F-tiling (or F-factor) of H is a collection of vertex-disjoint copies of F in H that together cover all the vertices of H. Perfect tiling problems, as a strengthening of the Turán problem, aim to find extremal conditions on H which guarantee an F-factor, which also has a long and profound history. In this thesis, we use many powerful tools including the probabilistic method, hypergraph regularity method and absorbing method to study Turán densities and perfect tilings of given k-graphs F in uniformly dense hypergraphs. Unlike graphs, we all know that there are several non-equivalent notions of quai-randomness in k-graphs for k ≥ 3. Hence, our work also has several non-equivalent definitions of uniformly dense k-graphs. Roughly speaking, a k-graph H is (d, μ, ⋆)-dense means that it is d-dense and ⋆-quai-randomness for some small μ > 0 with respect to given random structures. Restricting to (d, μ, 1)-dense 3-graphs, the Turán density of a given 3-graph F is denoted by π1(F). Determining π1(F) was suggested by Erdős and Sós in the 1980s. In 2018, Reiher, Rödl and Schacht extended the concept of (d, μ, 1)-dense 3-graphs to (d, μ, k-2)-dense k-graphs for k ≥ 3, and they proposed the study of uniform Turán density πk-2(F) for a given k-graph F in (d, μ, k-2)-dense k-graphs. In particular, they showed that πk-2(•) “jumps” from 0 to at least k-to-the-minus-kth-power. In this thesis, we obtain a sufficient condition for 3-graphs F which satisfy π1(F)= 1/4. Interestingly, currently all known 3-graphs F whose π1(F) is 1/4 satisfy this condition. In addition, we also construct some intriguing 3-graphs F with π1(F) = 1/4. For k-graphs, we give a framework to study πk-2(F) for any k-graph F. By using this framework, we give a sufficient condition for k-graphs F satisfying πk-2(F) is k-to-the-minus-kth-power, and construct an infinite family of k-graphs with πk-2(F) is k-to-the-minus-kth-power.In 2016, Lenz and Mubayi posed the problem of characterizing the k-graphs F such that every sufficiently large (d, μ, dot)-dense k-graph H with d > 0, v(F)|v(H) and positive minimum vertex degree contains an F-factor. Motivated by this problem, we prove a general theorem on F-factors which reduces the F-factors problem of Lenz and Mubayi to a natural sub-problem, that is, the F-cover problem. By using this result, we answer the question of Lenz and Mubayi for those F which are k-partite k-graphs and for all 3-graphs F, separately. In the work of Lenz and Mubayi, they also constructed a sequence of (1/8, μ, dot)-dense 3-graphs with positive minimum vertex degree having no F-factor, where F is a balanced complete 3-partite 3-graph. In this thesis, we prove that 1/8 is the density threshold for ensuring all 3-partite 3-graphs perfect tilings in (d, μ, dot)-dense 3-graphs given a minimum codegree condition Ω(n). Moreover, we show that one can not replace the minimum codegree condition with a minimum vertex degree condition. In particular, we study the optimal density threshold of F-factors for each 3-partite 3-graph F in (d, μ, dot)-dense 3-graphs with minimum codegree Ω(n). In addition, we also study F-factor problems for k-partite k-graphs F with stronger quasi-random assumption and positive minimum 1-degree
Person, Yury. "Quasi-random hypergraphs and extremal problems for hypergraphs". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2010. http://dx.doi.org/10.18452/16238.
Texto completoThis thesis presents first one possible generalization of the result of Chung, Graham and Wilson to k-uniform hypergraphs, and studies the so-called weak quasi-randomness. As applications we obtain a simple strong refutation algorithm for random sparse k-SAT formulas and we identify first non-bipartite forcing pairs for quasi-random graphs. Our focus then shifts from the study of quasi-random objects to applications of different versions of the hypergraph regularity lemmas; all these versions assert decompositions of hypergraphs into constantly many quasi-random parts, where the meaning of ``quasi-random'''' takes different contexts in different situations. We study the family of hypergraphs not containing the hypergraph of the Fano plane as a subhypergraph, and show that almost all members of this family are bipartite. As a consequence an algorithm for coloring bipartite 3-uniform hypergraphs with average polynomial running time is given. Then the following combinatorial extremal problem is considered. Suppose one is given r colors and a fixed hypergraph F. The question is: In at most how many ways can one color the hyperedges of a hypergraph H on n vertices such that no monochromatic copy of F is created? What are the extremal hypergraphs for this function? Here a structural result for a natural family of hypergraphs F is proven. For some special classes of hypergraphs we show that their extremal hypergraphs (for large n) maximize the number of edge colorings for 2 and 3 colors, while for at least 4 colors other hypergraphs are optimal.
Person, Yury [Verfasser]. "Quasi-random hypergraphs and extremal problems for hypergraphs / Yury Person". 2010. http://d-nb.info/1011000105/34.
Texto completoCapítulos de libros sobre el tema "Quasi-random hypergraph"
Han, Jie, Xichao Shu y Guanghui Wang. "Non-linear Hamilton cycles in linear quasi-random hypergraphs". En Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms (SODA), 74–88. Philadelphia, PA: Society for Industrial and Applied Mathematics, 2021. http://dx.doi.org/10.1137/1.9781611976465.6.
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