Eb. Dynkin, A NEW RELATION BETWEEN DIFFUSIONS AND SUPERDIFFUSIONS WITH APPLICATIONS TO THE EQUATION LU=U(ALPHA), Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 325(4), 1997, pp. 439-444
We establish a relation between a diffusion xi and the superdiffusion
X corresponding to the spatial motion xi and branching parameter alpha
. It involves, on one hand, the range R and linear additive functional
s of X and, on the other hand, h-transforms of process xi. By using th
is relation, we investigate boundary singularities of solutions of the
semilinear partial differential equation Lu = u(alpha).