digraphoid

名词 n.

英文释义

名词 n.
  1. A dual pair of regular matroids.
    — We now wish to consider what part of the theory of directed graphs can be built up in the wider context of graphoids/matroids. To this end, we shall introduce the concepts of digraphoid (short for “directed graphoid”) and orientable graphoid. […] A digraphoid is a structure consisting of: (1º) a graphoid, and (2º) a partitioning of each circuit and cocircuit of the graphoid, each being partitioned into two sets; this partitioning is to satisfy the axiom: […]

词形变化

digraphoids plural

词源

Blend of directed + graphoid, after digraph (“directed graph”). Coined by American mathematician George J. Minty in a 1966 article.
0 次浏览 数据来源: Wiktionary