The number of rank-k flats in a matroid with no U2, n-minor

نویسنده

  • Peter Nelson
چکیده

We show that, if k and ` are positive integers and r is sufficiently large, then the number of rank-k flats in a rank-r matroid M with no U2,`+2-minor is less than or equal to number of rank-k flats in a rank-r projective geometry over GF(q), where q is the largest prime power not exceeding `.

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عنوان ژورنال:
  • J. Comb. Theory, Ser. B

دوره 107  شماره 

صفحات  -

تاریخ انتشار 2014