[PDF][PDF] Linear and nonlinear non-Fredholm operators and their applications

M Efendiev, V Vougalter - Electron. Res. Arch, 2022 - researchgate.net
In this survey we discuss the recent results on the existence in the sense of sequences of
solutions for certain elliptic problems containing the non-Fredholm operators. First of all, we …

Existence of solutions for some non-Fredholm integro-differential equations with mixed diffusion

M Efendiev - Linear and Nonlinear Non-Fredholm Operators: Theory …, 2023 - Springer
Existence of solutions for some non-Fredholm integro-differential equations with mixed
diffusion Page 1 Chapter 4 Existence of solutions for some non-Fredholm integro-differential …

[HTML][HTML] Solvability in the sense of sequences for some fourth order non-Fredholm operators

M Efendiev, V Vougalter - Journal of Differential Equations, 2021 - Elsevier
We study solvability of some linear nonhomogeneous elliptic problems and establish that
under reasonable technical conditions the convergence in L 2 (R d) of their right sides …

Solvability in the sense of sequences for some non-Fredholm operators with the logarithmic Laplacian

M Efendiev, V Vougalter - Monatshefte für Mathematik, 2023 - Springer
We establish the solvability of certain linear nonhomogeneous equations and demonstrate
that under reasonable technical conditions the convergence in L 2 (R d) of their right sides …

Solvability of some integro-differential equations with anomalous diffusion and transport

V Vougalter, V Volpert - Analysis and Mathematical Physics, 2021 - Springer
The article deals with the existence of solutions of an integro-differential equation in the case
of anomalous diffusion with the negative Laplace operator in a fractional power in the …

Existence of solutions for some systems of integro-differential equations with transport and superdiffusion

M Efendiev, V Vougalter - Analysis and Mathematical Physics, 2022 - Springer
We establish the existence in the sense of sequences of solutions for certain systems of
integro-differential equations which involve the drift terms and the square root of the one …

Solvability in the sense of sequences for some logarithmic Schrödinger operators in higher dimensions

M Efendiev, V Vougalter - Journal of Pseudo-Differential Operators and …, 2023 - Springer
We study the solvability of certain linear nonhomogeneous equations containing the
logarithm of the sum of the two Schrödinger operators in higher dimensions and …

Solvability of some integro-differential equations with drift and superdiffusion

M Efendiev - Linear and Nonlinear Non-Fredholm Operators: Theory …, 2023 - Springer
Solvability of some integro-differential equations with drift and superdiffusion Page 1 Chapter
3 Solvability of some integro-differential equations with drift and superdiffusion In this chapter …

Existence of solutions for a class of integro-differential equations with the logarithmic Laplacian and transport

Y Chen, V Vougalter - La Matematica, 2024 - Springer
In this paper, we consider an integro-differential equation in L 2 (R), which involves the
logarithmic Laplacian in the presence of a drift term. The linear operator associated with the …

Solvability in the sense of sequences for some linear and nonlinear Fredholm operators with the logarithmic Laplacian

M Efendiev, V Vougalter - Complex Variables and Elliptic Equations, 2025 - Taylor & Francis
We study the solvability of certain linear and nonlinear nonhomogeneous equations in one
dimension involving the logarithmic Laplacian and the transport term. In the linear case we …