Sciweavers

DCG
1999
89views more  DCG 1999»
13 years 11 months ago
On Flag Vectors, the Dowling Lattice, and Braid Arrangements
Westudycomplexhyperplanearrangementswhoseintersectionlattices,known as the Dowling lattices, are a natural generalization of the partition lattice. We give a combinatorial descript...
Richard Ehrenborg, Margaret Readdy
COMBINATORICS
2004
76views more  COMBINATORICS 2004»
13 years 11 months ago
Geometrically Constructed Bases for Homology of Partition Lattices
Abstract. We use the theory of hyperplane arrangements to construct natural bases for the homology of partition lattices of types A, B and D. This extends and explains the "sp...
Anders Björner, Michelle L. Wachs