Log-concavity in planar random walks

Abstract

We prove log-concavity of exit probabilities of lattice random walks in certain planar regions.

10 pages, 5 figures. The proof is somewhat expanded. Details, new figure and additional references added. To appear in Combinatorica

References in corpus (2)

• Extensions of the Kahn--Saks inequality for posets of width two
• The cross-product conjecture for width two posets

Cited by in corpus (1)

• Extensions of the Kahn--Saks inequality for posets of width two