作者: CRASS 時間: 2025-3-21 21:25
Trends in Mathematicshttp://image.papertrans.cn/e/image/319789.jpg作者: Charlatan 時間: 2025-3-22 01:03
Conference proceedings 2021.This book collects the extended abstracts of the accepted contributions to EuroComb21. A similar book is published at every edition of EuroComb (every two years since 2001) collecting the most recent advances in combinatorics, graph theory, and related areas.? It has a wide audience in the areas, and the papers are used and referenced broadly..作者: altruism 時間: 2025-3-22 08:36 作者: opinionated 時間: 2025-3-22 11:26 作者: 外表讀作 時間: 2025-3-22 13:43 作者: 外表讀作 時間: 2025-3-22 20:04
Imitation von AuslandsmarkteintrittenLet?. be a finite field consisting of?. elements and let?. be an integer. In this paper, we study the size of local Kakeya sets with respect to subsets of?. and obtain upper and lower bounds for the minimum size of a (local) Kakeya set with respect to an arbitrary set?..作者: 草本植物 時間: 2025-3-23 00:04
A woodworm in the intentional relation,We denote by .(.,?.) a graph chosen uniformly at random from the class of all vertex-labelled planar graphs on vertex set . with . edges. We determine the asymptotic number of cut vertices in .(.,?.) in the sparse regime. For comparison, we also derive the asymptotic number of cut vertices in the Erd?s-Rényi random graph .(.,?.).作者: 結束 時間: 2025-3-23 03:06 作者: intuition 時間: 2025-3-23 07:29 作者: nugatory 時間: 2025-3-23 10:01 作者: RENIN 時間: 2025-3-23 16:14
Size of Local Finite Field Kakeya Sets,Let?. be a finite field consisting of?. elements and let?. be an integer. In this paper, we study the size of local Kakeya sets with respect to subsets of?. and obtain upper and lower bounds for the minimum size of a (local) Kakeya set with respect to an arbitrary set?..作者: colloquial 時間: 2025-3-23 21:02 作者: 驚惶 時間: 2025-3-24 00:56 作者: 朋黨派系 時間: 2025-3-24 04:19
,A Short Proof of Euler–Poincaré Formula,“.”, the famous Euler’s polyhedral formula, has a natural generalization to convex polytopes in every finite dimension, also known as the Euler–Poincaré Formula. We provide another short inductive combinatorial proof of the general formula. Our proof is self-contained and it does not use shellability of polytopes.作者: Soliloquy 時間: 2025-3-24 08:07 作者: Aphorism 時間: 2025-3-24 12:50 作者: discord 時間: 2025-3-24 17:29 作者: 分發(fā) 時間: 2025-3-24 19:34 作者: Ischemic-Stroke 時間: 2025-3-25 01:37 作者: 凹槽 時間: 2025-3-25 03:38 作者: 感激小女 時間: 2025-3-25 07:31
https://doi.org/10.1007/978-3-658-05438-0.. The key to the result is an inductive construction of a family of 13-crossing-critical graphs with many vertices of arbitrarily high degrees. While the inductive part of the construction is rather easy, it all relies on the fact that a certain 17-vertex base graph has the crossing number 13, whic作者: 確認 時間: 2025-3-25 12:03
https://doi.org/10.1007/978-3-8349-6187-7lish a novel uniform infinite planar graph (UIPG) as quenched limit in the local topology as . tends to infinity. We also establish such limits for random 2-connected planar graphs and maps as their number of edges tends to infinity. Our approach encompasses a new probabilistic view on the Tutte dec作者: 責任 時間: 2025-3-25 17:32 作者: dithiolethione 時間: 2025-3-25 22:03 作者: 帳單 時間: 2025-3-26 02:21 作者: humectant 時間: 2025-3-26 04:50 作者: 土坯 時間: 2025-3-26 10:53 作者: 清唱劇 時間: 2025-3-26 13:07
,Immergrüner Wandel – Ein Ausblick, that .. Recently, by relating this problem to a topological game, the authors, together with Bowler and Pitz, gave the current best known bound that .. Combining some of these ideas with some techniques introduced by Schr?der we improve this bound and show that ..作者: 高調 時間: 2025-3-26 19:49 作者: 寬容 時間: 2025-3-26 20:57
https://doi.org/10.1007/978-3-030-49552-7isjoint cycles . and ., such that the vertex set of . is a subset of the vertex set of . and their cyclic orderings of the vertices respect each other? We prove the optimal linear bound . using sublinear expanders.作者: 修正案 時間: 2025-3-27 04:12 作者: 宇宙你 時間: 2025-3-27 08:06
,Immergrüner Wandel – Ein Ausblick, that .. Recently, by relating this problem to a topological game, the authors, together with Bowler and Pitz, gave the current best known bound that .. Combining some of these ideas with some techniques introduced by Schr?der we improve this bound and show that ..作者: cajole 時間: 2025-3-27 13:27 作者: 領帶 時間: 2025-3-27 13:54 作者: 災難 時間: 2025-3-27 19:51 作者: 勾引 時間: 2025-3-27 23:31
Extremal Density for Sparse Minors and Subdivisions,cal minor; . average degree forces . .-vertex planar graph as a minor, furthermore, surprisingly, the value is the same for .-vertex graphs embeddable on any fixed surface; average degree . forces . .-vertex graph in . nontrivial minor-closed family as a minor. All these constants are best possible.作者: 搖晃 時間: 2025-3-28 04:20 作者: RAFF 時間: 2025-3-28 06:39 作者: Transfusion 時間: 2025-3-28 12:39 作者: recession 時間: 2025-3-28 16:46 作者: 有害 時間: 2025-3-28 20:34
Beantwortung der Frage: Was ist Aufkl?rung ?zes them, by the number of descents, giving an implicit equation for their generating function in terms of that of Eulerian polynomials. We also show that many of the properties of descents on usual permutations and on Stirling permutations have an analogue for quasi-Stirling permutations.作者: Credence 時間: 2025-3-29 00:58
https://doi.org/10.1007/978-3-8349-6187-7h step on condensation phenomena for random walks under subexponentiality, and Gibbs partitions. Using large deviation results, we recover the asymptotic formula by Giménez and Noy (2009) for the number of planar graphs.作者: Grievance 時間: 2025-3-29 05:29 作者: 譏諷 時間: 2025-3-29 10:42
,Kriegsverhütung und Friedensvorsorge,very set of at least . points in . in general position contains a .-hole, we show ., ., and .. Moreover, all obtained bounds are sharp in the setting of chirotopes and we conjecture them to be sharp also in the original setting of point sets.作者: corporate 時間: 2025-3-29 12:53
Coloring of Graphs Avoiding Bicolored Paths of a Fixed Length,colored copy of . in .,? and the minimum number of colors needed for a .-coloring of . is called the . of .,? denoted by . We provide bounds on . for all graphs, in particular, proving that for any graph . with maximum degree . and . . Moreover, we find the exact values for the .-chromatic number of the products of some cycles and paths for ..作者: aesthetician 時間: 2025-3-29 19:10
Enumerating Descents on Quasi-Stirling Permutations and Plane Trees,zes them, by the number of descents, giving an implicit equation for their generating function in terms of that of Eulerian polynomials. We also show that many of the properties of descents on usual permutations and on Stirling permutations have an analogue for quasi-Stirling permutations.作者: fiscal 時間: 2025-3-29 22:52
Local Convergence of Random Planar Graphs,h step on condensation phenomena for random walks under subexponentiality, and Gibbs partitions. Using large deviation results, we recover the asymptotic formula by Giménez and Noy (2009) for the number of planar graphs.作者: 宴會 時間: 2025-3-30 02:02
,Halin’s End Degree Conjecture,. and . neighbouring rays . all disjoint from each other and each . sending a family of infinitely many disjoint paths to . so that paths from distinct families only meet in ...We show that Halin’s conjecture fails for end degree ., holds for end degree ., fails for ., and is undecidable (in ZFC) for the next . with ., ..作者: 挑剔小責 時間: 2025-3-30 04:43
,A SAT Attack on Higher Dimensional Erd?s–Szekeres Numbers,very set of at least . points in . in general position contains a .-hole, we show ., ., and .. Moreover, all obtained bounds are sharp in the setting of chirotopes and we conjecture them to be sharp also in the original setting of point sets.作者: MEN 時間: 2025-3-30 08:24
2297-0215 s in this conference.Collects the extended abstracts of the .This book collects the extended abstracts of the accepted contributions to EuroComb21. A similar book is published at every edition of EuroComb (every two years since 2001) collecting the most recent advances in combinatorics, graph theory作者: predict 時間: 2025-3-30 15:04 作者: 得意牛 時間: 2025-3-30 16:38
The True, the Good and the Beautiful,sibly depending on .). We first consider the case when . is a random geometric graph, and obtain an asymptotically optimal result. We then consider the case when . is a random regular graph, and obtain different results depending on the regularity.作者: BAN 時間: 2025-3-30 21:20 作者: 柱廊 時間: 2025-3-31 01:58 作者: 調色板 時間: 2025-3-31 08:32
https://doi.org/10.1007/978-3-476-99688-6f this result by presenting another construction . and showing that any .-vertex, connected, .-uniform hypergraph without a Berge-path of length ., that contains more than . hyperedges must be a subhypergraph of the extremal hypergraph ., provided . is large enough compared to ..作者: 他去就結束 時間: 2025-3-31 13:01
Some Results on the Laplacian Spectra of Token Graphs,. such that ., the Laplacian spectrum of . is contained in the Laplacian spectrum of .. Besides, we obtain a relationship between the spectra of the .-token graph of . and the .-token graph of its complement .. This generalizes a well-known property for Laplacian eigenvalues of graphs to token graphs.作者: Abduct 時間: 2025-3-31 15:34 作者: Capitulate 時間: 2025-3-31 20:26
Christian Korunka,Bettina Kubicek of pseudocircles. Furthermore, we construct an infinite family of 4-edge-critical 4-regular planar graphs which are fractionally 3-colorable. This disproves the conjecture of Gimbel, Kündgen, Li and Thomassen (2019) that every 4-chromatic planar graph has fractional chromatic number strictly greater than?3.作者: 殘忍 時間: 2025-4-1 00:52
Coloring Circle Arrangements: New 4-Chromatic Planar Graphs, of pseudocircles. Furthermore, we construct an infinite family of 4-edge-critical 4-regular planar graphs which are fractionally 3-colorable. This disproves the conjecture of Gimbel, Kündgen, Li and Thomassen (2019) that every 4-chromatic planar graph has fractional chromatic number strictly greater than?3.作者: 幼兒 時間: 2025-4-1 02:29 作者: BATE 時間: 2025-4-1 10:04
Nested Cycles with No Geometric Crossings,isjoint cycles . and ., such that the vertex set of . is a subset of the vertex set of . and their cyclic orderings of the vertices respect each other? We prove the optimal linear bound . using sublinear expanders.作者: Breach 時間: 2025-4-1 13:16 作者: Relinquish 時間: 2025-4-1 17:41
Enumerating Descents on Quasi-Stirling Permutations and Plane Trees,al extension of these permutations are quasi-Stirling permutations, which are in bijection with labeled rooted plane trees, and can be viewed as labeled noncrossing matchings. They were recently introduced by Archer et al., who conjectured that there are . quasi-Stirling permutations of size . havin
