Polarization, continuous Markov processes, and second order elliptic equations Dimitrios Betsakos 60J4535J2535B05Markov processpolarizationexit distributiontransition functionGreen measurestochastic differential equationelliptic differential equation Indiana University Mathematics Journal 2004 text pdf 10.1512/iumj.2004.53.2380 10.1512/iumj.2004.53.2380 en Indiana Univ. Math. J. 53 (2004) 331 - 346 state-of-the-art mathematics http://iumj.org/access/