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m-Polar interval-valued fuzzy hypergraphs and its application in decision-making problems

Heliyon
This study introduces the novel concept of m-polar interval-valued fuzzy hypergraph (m-PIVFHG), an advancement that combines the strengths of fuzzy theory and hypergraph models to improve decision-making processes.
Sanchari Bera, Osamah Ibrahim Khalaf, Wing-Keung Wong, Madhumangal Pal   +3 more
doaj  

Weakly modular graphs with diamond condition, the interval function and axiomatic characterizations [PDF]

arXiv
Weakly modular graphs are defined as the class of graphs that satisfy the \emph{triangle condition ($TC$)} and the \emph{quadrangle condition ($QC$)}. We study an interesting subclass of weakly modular graphs that satisfies a stronger version of the triangle condition, known as the \emph{triangle diamond condition ($TDC$)}.
arxiv