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A Forbidden-Minor Characterization for the Class of graphic Matroids which yield the Co-graphic Element-Splitting Matroids. (arXiv:1708.07960v2 [math.CO] UPDATED)
来源于:arXiv
The element splitting operation on a graphic matroid, in general may not
yield a cographic matroid. In this paper, we give a necessary and sufficient
condition for the graphic matroid to yield cographic matroid under the element
splitting operation. 查看全文>>
