Results 31 to 40 of about 25,758 (195)

Effective epidemic containment strategy in hypergraphs

open access: yesPhysical Review Research, 2021
Recently, hypergraphs have attracted considerable interest from the research community as a generalization of networks capable of encoding higher-order interactions, which commonly appear in both natural and social systems.
Bukyoung Jhun
doaj   +1 more source

Independence densities of hypergraphs [PDF]

open access: yes, 2013
We consider the number of independent sets in hypergraphs, which allows us to define the independence density of countable hypergraphs. Hypergraph independence densities include a broad family of densities over graphs and relational structures, such as ...
Bonato, Anthony   +3 more
core   +3 more sources

Tiling multipartite hypergraphs in quasi-random hypergraphs

open access: yesJournal of Combinatorial Theory, Series B, 2023
22 pages.
Ding, Laihao   +4 more
openaire   +3 more sources

Hypergraph polytopes

open access: yesTopology and its Applications, 2011
We investigate a family of polytopes introduced by E.M.\ Feichtner, A.\ Postnikov and B.\ Sturmfels, which were named nestohedra. The vertices of these polytopes may intuitively be understood as constructions of hypergraphs. Limit cases in this family of polytopes are, on the one end, simplices, and, on the other end, permutohedra.
Došen, Kosta, Petrić, Zoran
openaire   +3 more sources

Quasi‐random hypergraphs [PDF]

open access: yesRandom Structures & Algorithms, 1989
AbstractWe introduce an equivalence class of varied properties for hypergraphs. Any hypergraph possessing any one of these properties must of necessity possess them all. Since almost all random hypergraphs share these properties, we term these properties quasi‐random.
Chung, F. R. K., Graham, R. L.
openaire   +3 more sources

Directed n-Superhypergraphs Incorporating Bipolar Fuzzy Information: A Multi-Tier Framework for Modeling Bipolar Uncertainty in Complex Networks [PDF]

open access: yesNeutrosophic Sets and Systems
Graph theory studies the mathematical structures of vertices and edges to model relationships and connectivity. Hypergraphs extend this framework by allowing hyperedges to connect arbitrarily many vertices at once [1], and Super-HyperGraphs further ...
Florentin Smarandache, Takaaki Fujita
doaj   +1 more source

A Note on Packing of Uniform Hypergraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
We say that two n-vertex hypergraphs H1 and H2 pack if they can be found as edge-disjoint subhypergraphs of the complete hypergraph Kn. Whilst the problem of packing of graphs (i.e., 2-uniform hypergraphs) has been studied extensively since seventies ...
Konarski Jerzy   +2 more
doaj   +1 more source

A Theoretical Investigation Based on the Rough Approximations of Hypergraphs

open access: yesJournal of Mathematics, 2022
Rough sets are a key tool to model uncertainty and vagueness using upper and lower approximations without predefined functions and additional suppositions.
Musavarah Sarwar
doaj   +1 more source

A family of extremal hypergraphs for Ryser's conjecture [PDF]

open access: yes, 2018
Ryser's Conjecture states that for any $r$-partite $r$-uniform hypergraph, the vertex cover number is at most $r{-}1$ times the matching number. This conjecture is only known to be true for $r\leq 3$ in general and for $r\leq 5$ if the hypergraph is ...
Abu-Khazneh, Ahmad   +3 more
core   +3 more sources

Hypergraph Partitioning [PDF]

open access: yes, 2011
Hypergraphs are generalization of graphs where each edge (hyperedge) can connect more than two vertices. In simple terms, the hypergraph partitioning problem can be defined as the task of dividing the vertices of hypergraph into two or more roughly equal sized parts such that a cost function on the hyperedges connecting vertices in different parts is ...
Quincey Koziol   +13 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy