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David Forge (Orsay)

No-Broken-Circuit Sets of Truncated Affine Arrangements

Abstract for the Combinatorics Seminar 2010 October 6

I present some constructions on the class of no-broken-circuit (NBC) sets of some “deformations” of the braid arrangement. (The hyperplanes of the deformations have equation of the form xi - xj = k.) This leads us to new bijective proofs for the numbers of regions of the Shi, Linial and other hyperplane arrangements.

This is joint work with Sylvie Corteel and Véronique Ventos.

seminars/comb/abstract.201010for.txt · Last modified: 2020/01/29 14:03 (external edit)