Truncation Formulas for Invariant Polynomials of Matroids and Geometric Lattices
نویسندگان
چکیده
This paper considers the truncation of matroids and geometric lattices. It is shown that the truncated matroid of a representable matroid is again representable. Truncation formulas are given for the coboundary and Möbius polynomial of a geometric lattice and the spectrum polynomial of a matroid, generalizing the truncation formula of the rank generating polynomial of a matroid by Britz. Mathematics Subject Classification (2010). 05B35.
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ورودعنوان ژورنال:
- Mathematics in Computer Science
دوره 6 شماره
صفحات -
تاریخ انتشار 2012