具有图余回路的正则拟阵
Regular Matroids with Graphic Cocircuits
摘要:
我们引入了图形余回路的概念,并证明了一类具有图形余回路的正则拟阵属于符号图形拟阵。此外,我们提供了一个算法,确定是否有一个图的余圈的余图拟阵是符号图或没有。
英文摘要:
We introduce the notion of graphic cocircuits and show that a large class of regular matroids with graphic cocircuits belongs to the class of signed-graphic matroids. Moreover, we provide an algorithm which determines whether a cographic matroid with graphic cocircuits is signed-graphic or not.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。