Delta-matroid
id:
delta-matroid-255-10206822
title:
Delta-matroid
text:
In mathematics, a delta-matroid or Δ-matroid is a family of sets obeying an exchange axiom generalizing an axiom of matroids. A non-empty family of sets is a delta-matroid if, for every two sets E and F in the family, and for every element e in their symmetric difference E △ F , there exists an f ∈ E △ F such that E △ { e , f } is in the family. For the basis sets of a matroid, the corresponding exchange axiom requires in addition that e ∈ E and f ∈ F , ensuring that E and F have the same cardin
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Delta-matroid
date created:
date modified:
2021-07-06T20:40:35Z
main entity:
{"identifier":"Q65063277","url":"https://www.wikidata.org/entity/Q65063277"}
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fields total:
13
integrity:
13