ultragraph
nounEtymology From ultra- + graph.
1
Mathematics, Sciences A generalization of a directed graph in which the source of an edge is a set of vertices rather than a single vertex.
- 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..2015, Daniel Gonçalves, Danilo Royer, “Ultragraphs and shifts over infinite alphabets”, in arXiv: