A four-direction planar random motion with finite velocity and with possible reflections at
Poisson-paced events is examined. We obtain the equations governing the distributions
within the diffusion set Q_t and the equations directing the singular components of the
distributions. The distributions on the edge of Q_t and its diagonals are explicitly obtained.

Analysis of a finite-velocity planar random motion with reflection … Analysis of a finite-velocity
planar random motion with reflection / Orsingher, Enzo; Kolesnik, A.. - In: THEORY OF
PROBABILITY AND ITS APPLICATIONS. - ISSN 0040-585X. - … Analysis of a finite-velocity
planar random motion with reflection …