Expected exit times of Brownian motion from planar domains: Complements   to a paper of Markowsky
  We supplement a very recent paper of G. Markowsky concerned with the expected exit times of Brownian motion from planar domains. Besides the use of conformal mapping, we apply results from potential theory. We treat the case of a wedge-shaped region exactly, subsuming an example of Markowsky. A number of other results are presented, including for a half disc, $n$-grams, and a variety of other regions. 
Mark W. Coffey
math-ph math.MP math.PR