2 papers
math.PR2004
Degrees of transience and recurrence and hierarchical random walks
D. A. Dawson, L. G. Gorostiza, A. Wakolbinger
The notion of degree and related notions concerning recurrence and transience for a class of L'evy processes on metric Abelian groups are studied. The case of random walks on a hie…
math.PR1998
Finite time extinction of super-Brownian motions with catalysts
Donald A. Dawson, Klaus Fleischmann, Carl Mueller
Consider a catalytic super-Brownian motion with finite variance branching. Here `catalytic' means that branching of the reactant is only possible in the presence of som…