摘要
本文给出二元拟阵具有长度为k回路的一个充分必要条件,以反例否定了M.Borowiecki的结论。
In this paper, two sufficient conditions for matroids containing a circuitof size k are given, and a sufficient and necessary condition for binarymatroids is further obtained, so that the conclusion posed by M. Borowieckion the matroid with a circuit of size k is denied.
