# On some perturbations of a stable process and solutions to the Cauchy problem for a class of pseudo-differential equations

## Keywords:

stable process, Cauchy problem, pseudo-differential equation, transition probability density
Published online:
2015-07-03

### Abstract

A fundamental solution for some class of pseudo-differential equations is constructed by the method based on the theory of perturbations. We consider a symmetric $\alpha$-stable process in multidimensional Euclidean space. Its generator $\mathbf{A}$ is a pseudo-differential operator whose symbol is given by $-c|\lambda|^\alpha$, were the constants $\alpha\in(1,2)$ and $c>0$ are fixed. The vector-valued operator $\mathbf{B}$ has the symbol $2ic|\lambda|^{\alpha-2}\lambda$. We construct a fundamental solution of the equation $u_t=(\mathbf{A}+(a(\cdot),\mathbf{B}))u$ with a continuous bounded vector-valued function $a$.

How to Cite

(1)

Osypchuk, M. On Some Perturbations of a Stable Process and Solutions to the Cauchy Problem for a Class of Pseudo-Differential Equations.

*Carpathian Math. Publ.***2015**,*7*, 101-107.