the flowability of minor in is studied. From the necessary condition of being flowing that for any , , we define a map by ,and then prove the necessary condition of is flowing in .By the result that imples and imples we define and prove that is a flowing.
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吕国亮. 拟阵 在 中的 可流性[J]. 科学技术与工程, 2010, (19): . LV Guo-liang. Flowability of Matroid in[J]. Science Technology and Engineering,2010,(19).