作者: Boris Albar , Daniel Gonçalves , Jorge L. Ramírez Alfonsín
DOI: 10.1016/J.EJC.2015.10.010
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摘要: Abstract In this note we investigate some matroid minor structure results. particular, present sufficient conditions, in terms of triangles, for a to have either U 2 , 4 or F 7 M ( K 5 ) as minor.