collaborators

10 papers

math.AP2026

Variational and nonvariational solutions for double phase variable exponent problems

Mustafa Avci

In this article, we examine two double-phase variable exponent problems, each formulated within a distinct framework. The first problem is non-variational, as the nonlinear term ma…

math.AP2026

Positive weak solutions of a double-phase variable exponent problem with a fractional-Hardy-type singular potential and superlinear nonlinearity

Mustafa Avci

In the present paper, we study a double-phase variable exponent problem which is set up within a variational framework including a singular potential of fractional-Hardy-type. We e…

math.PR2026

On the existence, uniqueness and stability of solutions of SDEs with state-dependent variable exponent

Mustafa Avci

We study a time-inhomogeneous nonlinear SDE with drift and diffusion governed by state-dependent variable exponents. This framework generalizes models like the geometric Brownian m…

math.AP2026

A Topological Approach to Singular Double-Phase Equations with Variable Exponents

Mustafa Avci

In the present paper, we study a singular double phase variable exponent Dirichlet problem in the setting of a new Musielak-Orlicz Sobolev space with the nonlinearity (the external…

math.AP2025

Stochastic representation of solutions for the parabolic Cauchy problem with variable exponent coefficients

Mustafa Avci

In this work, we prove existence and uniqueness of a bounded viscosity solution for the Cauchy problem of degenerate parabolic equations with variable exponent coefficients. We con…

math.AP2025

On the geometric Brownian motion with state-dependent variable exponent diffusion term

Mustafa Avci

We propose a new stochastic model involving state-dependent variable exponent which allows modeling of systems where noise intensity adapts to the current state. This ne…