Results 51 to 60 of about 118 (93)
Matching criticality in intersecting hypergraphs
, 2017 The transversal number τ(H) of a hypergraph H is the minimum cardinality of a set of vertices that intersects all edges of H. The matching number α′(H) of H is the maximum cardinality of a matching in H. A hypergraph H is intersecting if and only if α′(H)
Ni, Zhenyu, Shan, Erfang, Kang, Liying
core
Chain and threshold hypergraphs
AKCE International Journal of Graphs and CombinatoricsThreshold graphs and chain graphs are the graphs with maximum spectral radius among the family of all connected graphs and connected bipartite graphs, respectively.
Shashwath S. Shetty, Arathi Bhat K
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Almost and quasi-Leinster groups
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaIn this paper, we extend the parallelism between perfect numbers and Leinster groups, by introducing the new concepts of almost and quasi-Leinster groups which parallel almost and quasi-perfect numbers.
Pleşca Iulia-Cătălina +1 more
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Directed hypergraphs: A tool for researching digraphs and hypergraphs
Discussiones Mathematicae Graph Theory, 2009 H. Galeana-Sánchez, Martín Manrique
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Representing Higher-Order Networks: A Survey of Graph-Based Frameworks
Many real-world phenomena are naturally modeled by graphs and networks. However, classical graph models are often limited to pairwise interactions and may not adequately capture the richer structures that arise in practice.
Fujita, T., Smarandache, Florentin
core
Scores, inequalities and regular hypertournaments
, 2012 M. Khan, S. Pirzada, K. K. Kayibi
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Graphs with disjoint dominating and paired-dominating sets
Open Mathematics, 2010 Southey Justin, Henning Michael
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Hypergraphs with large transversal number and with edge sizes at least four
Open Mathematics, 2012 Henning Michael, Löwenstein Christian
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A maximum degree theorem for diameter-2-critical graphs
Open Mathematics, 2014 Haynes Teresa +3 more
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