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We prove the maximal local regularity of weak solutions to the parabolic problem associated with the fractional Laplacian with homogeneous Dirichlet boundary conditions on an arbitrary bounded open set $\Omega\subset\mathbb{R}^N$. Proofs…

Analysis of PDEs · Mathematics 2017-05-23 Umberto Biccari , Mahamadi Warma , Enrique Zuazua

We consider one-dimensional inhomogeneous parabolic equations with higher-order elliptic differential operators subject to periodic boundary conditions. In our main result we show that the property of continuous maximal regularity is…

Analysis of PDEs · Mathematics 2012-09-19 Jeremy LeCrone

In this paper we study maximal $L^p$-regularity for evolution equations with time-dependent operators $A$. We merely assume a measurable dependence on time. In the first part of the paper we present a new sufficient condition for the…

Functional Analysis · Mathematics 2016-09-12 Chiara Gallarati , Mark Veraar

We investigate the maximal $L_p$-regularity in J.L. Lions' problem involving a time-fractional derivative and a non-autonomous form $a(t;\cdot,\cdot)$ on a Hilbert space $H$. This problem says whether the maximal $L_p$-regularity in $H$…

Classical Analysis and ODEs · Mathematics 2025-03-19 Jia Wei He , Shi Long Li , Yong Zhou

We present some comparison results for solutions to certain non local elliptic and parabolic problems that involve the fractional Laplacian operator and mixed boundary conditions, given by a zero Dirichlet datum on part of the complementary…

Analysis of PDEs · Mathematics 2017-08-30 Begoña Barrios , María Medina

We show maximal $L^p$-regularity for non-autonomous Cauchy problems provided the trace spaces are stable in some parameterized sense and the time dependence is of bounded variation. In particular, on $L^2$, we obtain for all $p \in (1,2]$…

Functional Analysis · Mathematics 2016-09-29 Stephan Fackler

We establish optimal L^p bounds for the nontangential maximal function of the gradient of the solution to a second order elliptic operator in divergence form, possibly non-symmetric, with bounded measurable coefficients independent of the…

Analysis of PDEs · Mathematics 2007-05-23 Carlos E. Kenig , David J. Rule

We prove non-autonomous maximal $L^p$-regularity results on UMD spaces replacing the common H\"older assumption by a weaker fractional Sobolev regularity in time. This generalizes recent Hilbert space results by Dier and Zacher. In…

Functional Analysis · Mathematics 2018-04-18 Stephan Fackler

This work contributes in two areas, with sharp results, to the current investigation of regularity of solutions of heat equations (*) $Pu+\partial_tu=f$ on $\Omega\times I $, where $P$ is a nonlocal operator, and $\Omega \subset R^n$,…

Analysis of PDEs · Mathematics 2018-01-03 Gerd Grubb

We establish the maximal regularity for nonautonomous Ornstein-Uhlenbeck operators in $L^p$-spaces with respect to a family of invariant measures, where $p\in (1,+\infty)$. This result follows from the maximal $L^p$-regularity for a class…

Analysis of PDEs · Mathematics 2009-03-19 Matthias Geissert , Luca Lorenzi , Roland Schnaubelt

We obtain $L^p(L^q)$ maximal regularity estimates for time dependent second order elliptic operators in divergence form with rough dependencies in the spatial variables.

Functional Analysis · Mathematics 2016-08-23 Stephan Fackler

The first half of this work gives a survey of the fractional Laplacian (and related operators), its restricted Dirichlet realization on a bounded domain, and its nonhomogeneous local boundary conditions, as treated by pseudodifferential…

Analysis of PDEs · Mathematics 2018-03-05 Gerd Grubb

By using Fourier's transform and Fefferman-Stein's theorem, we investigate the $L^p$-maximal regularity of nonlocal parabolic and elliptic equations with singular and non-symmetric L\'evy operators, and obtain the unique strong solvability…

Analysis of PDEs · Mathematics 2012-01-04 Xicheng Zhang

The present paper establishes a certain duality between the Dirichlet and Regularity problems for elliptic operators with $t$-independent complex bounded measurable coefficients ($t$ being the transversal direction to the boundary). To be…

Analysis of PDEs · Mathematics 2014-07-01 Steve Hofmann , Carlos Kenig , Svitlana Mayboroda , Jill Pipher

In this note, we give an introduction to the concept of maximal $L^p$-regularity as a method to solve nonlinear partial differential equations. We first define maximal regularity for autonomous and non-autonomous problems and describe the…

Analysis of PDEs · Mathematics 2022-02-23 Robert Denk

We establish a new theory of regularity for elliptic complex valued second order equations of the form $\mathcal L=$div$A(\nabla\cdot)$, when the coefficients of the matrix $A$ satisfy a natural algebraic condition, a strengthened version…

Analysis of PDEs · Mathematics 2018-04-03 Martin Dindoš , Jill Pipher

In this paper we are concerned with $L^p$-maximal parabolic regularity for abstract nonautonomous parabolic systems and their quasilinear counterpart in negative Sobolev spaces incorporating mixed boundary conditions. Our results are…

Analysis of PDEs · Mathematics 2023-12-22 Hannes Meinlschmidt

Maximal parabolic $L^p$-regularity of linear parabolic equations on an evolving surface is shown by pulling back the problem to the initial surface and studying the maximal $L^p$-regularity on a fixed surface. By freezing the coefficients…

Numerical Analysis · Mathematics 2022-02-04 Balázs Kovács , Buyang Li

We provide sharp boundary regularity estimates for solutions to elliptic equations driven by an integro-differential operator obtained as the sum of a Laplacian with a nonlocal operator generalizing a fractional Laplacian. Our approach…

Analysis of PDEs · Mathematics 2025-12-10 Nicola Abatangelo , Elisa Affili , Matteo Cozzi

We study an elliptic differential operator A on a manifold with conic points. Assuming A to be defined on the smooth functions supported away from the singularities, we first address the question of possible closed extensions of A to L^p…

Analysis of PDEs · Mathematics 2007-05-23 S. Coriasco , E. Schrohe , J. Seiler
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