Linear Sobolev Type Equations with Relatively p-Radial Operators in Space of “Noises”

Sobolev type equations now constitute a vast area of non-classical equations of mathematical physics. They include equations of mathematical physics, whose representation in the form of equations or systems of partial differential equations does not fit any of the classical types (elliptic, parabolic or hyperbolic). By the properties of the operators involved, the considered Sobolev type equation has a degenerate solving semigroup of class C0 in suitable Banach spaces. We consider a Sobolev type stochastic equation in the spaces of random processes. The concepts previously introduced for the spaces of differentiable “noises” using the Nelson–Gliklikh derivative are carried over to the case of complex-valued “noises”. We construct a solution to the weakened Showalter–Sidorov problem for Sobolev type equation with relatively p-radial operator in a space of complex-valued processes.