Results 21 to 30 of about 1,548 (146)

Cartesian product of hypergraphs: properties and algorithms [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2009
Cartesian products of graphs have been studied extensively since the 1960s. They make it possible to decrease the algorithmic complexity of problems by using the factorization of the product.
Alain Bretto   +2 more
doaj   +1 more source

Complex hypergraphs

open access: yesPhysical Review E, 2023
Providing an abstract representation of natural and human complex structures is a challenging problem. Accounting for the system heterogenous components while allowing for analytical tractability is a difficult balance. Here I introduce complex hypergraphs (chygraphs), bringing together concepts from hypergraphs, multi-layer networks, simplicial ...
openaire   +3 more sources

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

Turánnical hypergraphs [PDF]

open access: yesRandom Structures & Algorithms, 2012
AbstractThis paper is motivated by the question of how global and dense restriction sets in results from extremal combinatorics can be replaced by less global and sparser ones. The result we consider here as an example is Turán's theorem, which deals with graphs G = ([n],E) such that no member of the restriction set \documentclass{article} \usepackage ...
Allen, Peter   +3 more
openaire   +3 more sources

Hypergraphs in m-Polar Fuzzy Environment

open access: yesMathematics, 2018
Fuzzy graph theory is a conceptual framework to study and analyze the units that are intensely or frequently connected in a network. It is used to study the mathematical structures of pairwise relations among objects. An m-polar fuzzy (mF, for short) set
Muhammad Akram, Gulfam Shahzadi
doaj   +1 more source

Maximizing Spectral Radii of Uniform Hypergraphs with Few Edges

open access: yesDiscussiones Mathematicae Graph Theory, 2016
In this paper we investigate the hypergraphs whose spectral radii attain the maximum among all uniform hypergraphs with given number of edges. In particular we characterize the hypergraph(s) with maximum spectral radius over all unicyclic hypergraphs ...
Fan Yi-Zheng   +3 more
doaj   +1 more source

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

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