Results 191 to 200 of about 698,372 (216)
Some of the next articles are maybe not open access.

Intersection Multigraphs of Uniform Hypergraphs

Graphs and Combinatorics, 1998
A hypergraph \(H=(V,\{X_i \mid i\in I\})\) is \(k\)-uniform if all hyperedges \(X_i\) have the same cardinality \(k\); it is \(k\)-conformal if there is some graph \(G\) such that \(H\) is isomorphic to the hypergraph of all cliques with \(k\) vertices of \(G\).
openaire   +2 more sources

On random sampling in uniform hypergraphs

Random Structures & Algorithms, 2011
AbstractA k‐graph \documentclass{article} \usepackage{amsmath,amsfonts,mathrsfs,amssymb}\pagestyle{empty}\begin{document} ${\mathcal{G}}^{(k)}$ \end{document} on vertex set [n] = {1,…,n} is said to be (ρ,ζ)‐uniform if every S ⊆ [n] of size s = |S| > ζn spans (ρ ± ζ)\documentclass{article} \usepackage{amsmath,amsfonts,mathrsfs,amssymb}\pagestyle ...
Andrzej Czygrinow, Brendan Nagle
openaire   +2 more sources

Partitioning dense uniform hypergraphs

Journal of Combinatorial Optimization, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shufei Wu, Jianfeng Hou
openaire   +1 more source

2-Colorings of uniform hypergraphs

Mathematical Notes, 2016
One of the most popular and classical extremal problems in hypergraph theory is the property of the existence \(2\)-coloring of its vertex set such that no hyper-edge of the hypergraph concerned is monochromatic. Certain bounds for the least number \(m(n)\) of edges of an \(n\)-uniform hypergraph with this property have been determined in the recent ...
Demidovich, Yu. A., Raigorodskii, A. M.
openaire   +2 more sources

Matching in 3-uniform hypergraphs

Discrete Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yi Zhang, Mei Lu
openaire   +1 more source

Decompositions of complete 3-uniform hypergraphs into small 3-uniform hypergraphs.

Australas. J Comb., 2014
In this paper we consider the problem of determining all values of v for which there exists a decomposition of the complete 3-uniform hypergraph on v vertices into edge-disjoint copies of a given 3-uniform hypergraph. We solve the problem for each 3-uniform hypergraph having at most three edges and at most six vertices, and for the 3-uniform hypergraph
Bryant, Darryn   +3 more
openaire   +2 more sources

Greedy colorings of uniform hypergraphs

Random Structures & Algorithms, 2009
AbstractWe give a very short proof of an Erdős conjecture that the number of edges in a non‐2‐colorable n‐uniform hypergraph is at least f(n)2n, where f(n) goes to infinity. Originally it was solved by József Beck in 1977, showing that f(n) at least clog n. With an ingenious recoloring idea he later proved that f(n) ≥ cn1/3+o(1). Here we prove a weaker
openaire   +3 more sources

On Sombor Index for Uniform Hypergraphs

Match Communications in Mathematical and in Computer Chemistry
Summary: The Sombor index for graphs is given by \textit{I. Gutman} [MATCH Commun. Math. Comput. Chem. 86, No. 1, 11--16 (2021; Zbl 1474.92154)]. Since hypergraphs can more accurately describe certain chemical scenarios. Then it has been proposed to generalize the Sombor index from graphs to hypergraphs. Recently, \textit{S. S. Shetty} and \textit{K. A.
Li, Zhuanzhuan   +4 more
openaire   +1 more source

Clique-symmetric uniform hypergraphs

2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
McSorley, John P, Porter, Thomas
openaire   +1 more source

Test dense subgraphs in sparse uniform hypergraph

Communications in Statistics - Theory and Methods, 2021
Mingao Yuan
exaly  

Home - About - Disclaimer - Privacy