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单词 ultragraph
释义

ultragraph

English

Etymology

ultra- + graph

Noun

ultragraph (plural ultragraphs)

  1. (mathematics) A generalization of a directed graph in which the source of an edge is a set of vertices rather than a single vertex.
    • 2015, Daniel Gonçalves, Danilo Royer, “Ultragraphs and shifts over infinite alphabets”, in arXiv:
      One of the key results needed in the proofs of our conclusions is the realization of a class of ultragraph C*-algebras as partial crossed products, a result of interest on its own..
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