We establish the existence of an entire solution for a class of stationary Schrödinger equations with subcritical discontinuous nonlinearity and lower bounded potential that blows-up at infinity. The abstract framework is related to Lebesgue–Sobolev spaces with variable exponent. The proof is based on the critical point theory in the sense of Clarke and we apply Chang’s version of the Mountain ...

Double system of exponents with complex-valued coefficients is considered. Under some conditions on the coefficients, we prove that if this system forms a basis for the Morrey-Lebesgue type space on $left[-pi , pi right]$, then it is isomorphic to the classical system of exponents in this space.

Abstract We present the theory of a new fractional Sobolev space in complete manifolds with variable exponent. As result, we investigate some our space’s qualitative properties, such as completeness, reflexivity, separability, and density. also show that continuous compact embedding results are valid. apply conclusions this study to variational analysis class $p(z, \cdot )$ <mml:math xmlns:mml=...

We consider an inverse problem of recovering the non-linearity in one dimensional variable exponent $p(x)$-Laplace equation from Dirichlet-to-Neumann map. The can be recovered up to natural obstruction rearrangements. main technique is using a Muntz-Szasz theorem after reducing determining function its $L^p$-norms.

We consider the regularity of solutions for some parabolic equations. We show Hölder continuity with exponent (1 + α)/2, with respect to the time variable, when the gradient in the space variable of the solution has the Hölder continuity with exponent α.