Results 61 to 70 of about 1,548 (146)

The upper chromatic number of quasi-interval co-hypergraphs

open access: yesLe Matematiche, 1997
We investigate the structural and colouring properties of clique hyper-graphs of interval graphs called the quasi-interval hypergraphs. We find the conditions when they are interval hypergraphs. The upper chromatic number for the clique co-hypergraphs of
Violeta Prisakaru
doaj  

Modularity Definition and Optimization Algorithm for Community Detection in Signed Hypergraphs

open access: yesComplexity
The analysis of super-dyadic relations through hypergraphs is gradually gaining attention, with its community structure analysis playing a crucial role in computational social science.
Wei Du, Guangyu Li
doaj   +1 more source

The complexity of recognizing $ABAB$-free hypergraphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
The study of geometric hypergraphs gave rise to the notion of $ABAB$-free hypergraphs. A hypergraph $\mathcal{H}$ is called $ABAB$-free if there is an ordering of its vertices such that there are no hyperedges $A,B$ and vertices $v_1,v_2,v_3,v_4$ in this
Gábor Damásdi   +3 more
doaj   +1 more source

Census and Analysis of Higher-Order Interactions in Real-World Hypergraphs

open access: yesBig Data Mining and Analytics
Complex systems can be more accurately described by higher-order interactions among multiple units. Hypergraphs excel at depicting these interactions, surpassing the binary limitations of traditional graphs.
Xihang Meng   +4 more
doaj   +1 more source

A note on self-complementary hypergraphs [PDF]

open access: yesOpuscula Mathematica, 2005
In the paper we describe all self-complementary hypergraphs. It turns out that such hypergraphs exist if and only if the number of vertices of the hypergraph is of the form \(n=2^k\). This answers a conjecture posed by A.
Małgorzata Zwonek
doaj  

On structures in hypergraphs of models of a theory

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
Hypergraphs of models of a theory are derived objects allowing toobtain an essential structural information about both giventheories and related semantic objects including graph ones.
B.Sh. Kulpeshov, S.V. Sudoplatov
doaj   +1 more source

Hypergraphs

open access: yes, 2022
Given a family S of five subsets of a 10-set, suppose |A△B|≥6 for all different A,B∈S. Prove that |A△B|=6 for all different A,B∈S.
openaire   +1 more source

Quantum Contextual Hypergraphs, Operators, Inequalities, and Applications in Higher Dimensions

open access: yesEntropy
Quantum contextuality plays a significant role in supporting quantum computation and quantum information theory. The key tools for this are the Kochen–Specker and non-Kochen–Specker contextual sets.
Mladen Pavičić
doaj   +1 more source

A Hypergraph Data Model for Expert-Finding in Multimedia Social Networks

open access: yesInformation, 2019
Online Social Networks (OSNs) have found widespread applications in every area of our life. A large number of people have signed up to OSN for different purposes, including to meet old friends, to choose a given company, to identify expert users about a ...
Flora Amato   +2 more
doaj   +1 more source

HyperGodot: Interactive hypergraph visualization tool

open access: yesSoftwareX
Hypergraphs provide a robust framework for modeling complex, multi-actor interactions that traditional graphs struggle to represent. In many real-world applications, interactions involve more than just pairs of entities, which makes hypergraphs an ...
Attila Ficsor   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy