On zeros of the characteristic polynomial of matroids of bounded tree-width
نویسندگان
چکیده
We develop some basic tools to work with representable matroids of bounded tree-width and use them to prove that, for any prime power q and constant k, the characteristic polynomial of any loopless, GF (q)representable matroid with tree-width k has no real zero greater than qk−1.
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ورودعنوان ژورنال:
- Eur. J. Comb.
دوره 60 شماره
صفحات -
تاریخ انتشار 2017