activity
20162026
most citedBoundary value problem for the time-fractional telegraph equation with Caputo derivatives

2 citations · 3 across the 16 of their papers we have counts for

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Showing 2025Show all

7 papers · 1 filter

math.AP2025

Normalized Solutions and Semiclassical Concentration for Upper-Critical Fractional Choquard Equations

Yergen Aikyn, Yongpeng Chen, Michael Ruzhansky +1

We study a fractional Choquard equation with an upper-critical Hartree term, an -supercritical Hartree perturbation, and a semiclassical potential under a prescribed -mas…

math.AP2025

Multiplicity of bound states for a class of nonlinear Dirac equations on generalized star graphs with potentials

Guangze Gu, Ziwei Li, Michael Ruzhansky +1

In this paper we investigate the existence and multiplicity of bound states for a class of nonlinear Dirac equations on a generalized star graph \(\mathcal{G}\): \[ -ic\,σ_1\,\part…

math.NA2025

Numerical Approaches for Identifying the Time-Dependent Potential Coefficient in the Diffusion Equation

Arshyn Altybay, Michael Ruzhansky

We address the inverse problem of identifying a time-dependent potential coefficient in a one-dimensional diffusion equation subject to Dirichlet boundary conditions and a nonlocal…

math.AP2025

Nonrelativistic limit of bound-state solutions for nonlinear Dirac equation on noncompact quantum graphs

Guangze Gu, Michael Ruzhansky, Guoyan Wei +1

In this paper, we investigate the nonrelativistic limit and qualitative properties of bound-state solutions for the nonlinear Dirac equation (NLDE) defined on noncompact quantum gr…

math.AP2025

Very weak solutions of the heat equation with anisotropically singular time-dependent diffusivity

Zhirayr Avetisyan, Zahra Keyshams, Monire Mikaeili Nia +1

We investigate the heat equation with a time-dependent, anisotropic, and potentially singular diffusivity tensor. Since weak (in the Sobolev sense) or distributional solutions may…

math.FA2025

Shifted Pitt and uncertainty inequalities on Riemannian symmetric spaces of noncompact type

Tapendu Rana, Michael Ruzhansky

Our primary objective is to study Pitt-type inequalities on Riemannian symmetric spaces of noncompact type, as well as within the framework of Jacobi analysis. Inspire…

math.AP2025

Singular Klein-Gordon equation on a bounded domain

Michael Ruzhansky, Alibek Yeskermessuly

In this paper, we consider the wave equation for the Laplace operator with potential, initial data, and nonhomogeneous Dirichlet boundary condition. We establish a weak solution by…