@article{ECP983,
author = {Martin Barlow and Richard Bass and Krzysztof Burdzy},
title = {Positivity of Brownian Transition Densities},
journal = {Electron. Commun. Probab.},
fjournal = {Electronic Communications in Probability},
volume = {2},
year = {1997},
keywords = {Transition densities, Brownian motion, eigenvalue expansion, fine topology, regular points.},
abstract = {Let $B$ be a Borel subset of $R^d$ and let $p(t,x,y)$ be the transition densities of Brownian motion killed on leaving $B$. Fix $x$ and $y$ in $B$. If $p(t,x,y)$ is positive for one $t$, it is positive for every value of $t$. Some related results are given.},
pages = {no. 4, 43-51},
issn = {1083-589X},
doi = {10.1214/ECP.v2-983},
url = {http://ecp.ejpecp.org/article/view/983}}