Tractable partially ordered sets derived from root systems and biased graphs

DOI10.1023/A:1006086805922zbMath0912.06003MaRDI QIDQ1267548

Thomas Zaslavsky, Philip J. Hanlon

Publication date: 16 May 1999

Published in: Order (Search for Journal in Brave)

zbMATH Keywords

Möbius functionarrangement of hyperplanescharacteristic polynomialroot systemHilbert polynomialpartially ordered setchromatic polynomialgraded posetsigned graphgain graphbiased graphbias matroidlift matroidextrinsic grading function

Mathematics Subject Classification ID

Combinatorics of partially ordered sets (06A07) Arrangements of points, flats, hyperplanes (aspects of discrete geometry) (52C35) Combinatorial aspects of matroids and geometric lattices (05B35) Coloring of graphs and hypergraphs (05C15) Graph theory (05C99)

Related Items

A generalization of semimodular supersolvable lattice