activity
20032026
most citedA'priori estimates and precise regularity for parabolic systems with discontinuous data

38 citations · 155 across the 17 of their papers we have counts for

collaborators

20 papers

math.AP2026

Conormal problem for a kind of nonlinear elliptic equations

A. F. Buscetto, R. Rescigno, L. G. Softova +1

We study the global boundedness of weak solutions to a class of nonlinear elliptic equations in bounded Lipschitz domains, subject to conormal boundary conditions. Using techniques…

math.AP2026

Nonlocal problems for Laplace equation in Bochner spaces

Bilal Bilalov, Sabina Sadigova, Pia Salerno +1

We study the Laplace equation posed in the unbounded rectangular domain with , and subject to nonlocal boundary conditions on in th…

math.AP2026

Interior a priori estimate for higher order elliptic systems in Orlicz spaces

Amiran Gogatishvili, Pia Salerno, Lubomira Softova

We investigate singular integral operators with variable Calderón--Zygmund kernels and their commutators with functions on Orlicz spaces. After revisiting the classical …

math.AP2025

Non-homogeneous conormal derivative problem for quasilinear elliptic equations with Morrey data

Dian K. Palagachev, Lubomira G. Softova

A non-homogeneous conormal derivative problem is considered for quasilinear divergence form elliptic equations modeled on the -Laplacian operator. The nonlinear terms are given…

math.AP2025

Approximation of the Solutions to Quasilinear Parabolic Problems with Perturbed Coefficients

Rosamaria Rescigno, Lubomira Softova

We consider the Cauchy-Dirichlet problem for second-order quasilinear non-divergence form operators of parabolic type. The data are Cara\-thé\-o\-dory functions, and the principal…

math.AP2023

Global solvability of the Laplace equation in weighted Sobolev spaces

Bilal T. Bilalov, Natavan P. Nasibova, Lubomira G. Softova +1

We consider a non-local boundary value problem for the Laplace equation in unbounded studding the weak and strong solvability of that problem in the framework of the weighted Sobol…

math.AP2022★ 2 cited

Boundedness of the solutions of a kind of nonlinear parabolic systems

Emilia Anna Alfano, Luisa Fattorusso, Lubomira Softova

We deal with nonlinear systems of parabolic type satisfying component-wise structural conditions. The nonlinear terms are Carathéodory maps having controlled growth with respect to…

math.AP2020★ 4 cited

Precise Morrey regularity of the weak solutions to a kind of quasilinear systems with discontinuous data

Luisa Fattorusso, Lubomira Softova

We consider the Dirichlet problem for a class of quasilinear elliptic systems in domain with irregular boundary. The principal part satisfies componentwise coercivity condition and…

math.AP2019

Venttsel boundary value problems with discontinuous data

Darya E. Apushkinskaya, Alexander I. Nazarov, Dian K. Palagachev +1

We study linear and quasilinear Venttsel boundary value problems involving elliptic operators with discontinuous coefficients. On the base of the a priori estimates obtained, maxim…

math.AP2019★ 9 cited

Asymptotically regular operators in generalized Morrey spaces

Sun-Sig Byun, Lubomira Softova

We obtain Calderón-Zygmund type estimates in generalized Morrey spaces for nonlinear equations of -Laplacian type. Our result is obtained under minimal regularity assumptions bo…

math.AP2018★ 10 cited

Boundedness of Solutions to a Class of Coercive Systems with Morrey Data

Dian K. Palagachev, Lubomira G. Softova

We prove global essential boundedness for the weak solutions of divergence form quasilinear systems. The principal part of the differential operator is componentwise coercive and s…

math.AP2017★ 11 cited

Boundedness of the solutions to nonlinear systems with Morrey data

Lubomira Softova

We consider nonlinear elliptic systems satisfying componentwise coercivity condition. The nonlinear terms have controlled growths with respect to the solution and its gradient, whi…

math.AP2015★ 6 cited

The Dirichlet problem in a class of generalized weighted spaces

Vagif S. Guliyev, Mehriban Omarova, Lubomira Softova

We show continuity in generalized weighted Morrey spaces of sub-linear integral operators generated by some classical integral operators and commutators. The obtained estimates are…

math.AP2013★ 2 cited

Global gradient estimates in weighted Lebesgue spaces for parabolic operators

Sun-Sig Byun, Dian K. Palagachev, Lubomira G. Softova

We deal with the regularity problem for linear, second order parabolic equations and systems in divergence form with measurable data over non-smooth domains, related to variational…

math.AP2013★ 11 cited

Parabolic oblique derivative problem in generalized Morrey spaces

Lubomira Softova

We study the regularity of the solutions of the oblique derivative problem for linear uniformly parabolic equations with VMO coefficients. We show that if the right-hand side of th…

math.AP2012★ 29 cited

Generalized Morrey regularity for parabolic equations with discontinuity data

Vagif S. Guliyev, Lubomira G. Softova

We obtain continuity in generalized parabolic Morrey spaces of sublinear integrals generated by the parabolic Calderón-Zygmund operators and its commutator with functions. Th…

math.AP2012★ 5 cited

Lp-integrability of the gradient of solutions to quasilinear systems with discontinuous coefficients

Lubomira G. Softova

The Dirichlet problem for a class of quasilinear elliptic systems of equations with small-BMO coefficients in Reifenberg-flat domain is considered. The lower order terms supposed t…

math.AP2004★ 19 cited

Fine regularity for elliptic systems with discontinuous ingredients

Dian Palagachev, Lubomira Softova

We propose results on interior Morrey, BMO and Hölder regularity for the strong solutions to linear elliptic systems of order 2b with discontinuous coefficients and right-hand side…

math.AP2004★ 38 cited

A'priori estimates and precise regularity for parabolic systems with discontinuous data

Dian K. Palagachev, Lubomira G. Softova

We deal with linear parabolic (in sense of Petrovskii) systems of order 2b with discontinuous principal coefficients. A'priori estimates in Sobolev and Sobolev--Morrey spaces are p…

math.AP2003★ 9 cited

W^{2,1}_p Solvability for Parabolic Poincare Problem

Lubomira G. Softova

We study Poincaré problem for a linear uniformly parabolic operator in a cylinder The boundary operator $\B$ is defined by an oblique derivative with respect…