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Related papers: Stochastic maximal $L^p$-regularity

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In this paper we prove and discuss some new $\left( H_p,L_{p,\infty}\right)$ type inequalities of the maximal operators of $T$ means with monotone coefficients with respect to Walsh-Kaczmarz system. It is also proved that these results are…

Classical Analysis and ODEs · Mathematics 2021-03-30 Nata Gogolashvili , George Tephnadze

The goal of this note is to establish non-tangential convergence results for Schr\"{o}dinger operators along restricted curves. We consider the relationship between the dimension of this kind of approach region and the regularity for the…

Classical Analysis and ODEs · Mathematics 2021-06-18 Wenjuan Li , Huiju Wang , Dunyan Yan

In this paper we consider the vector-valued Schr\"{o}dinger operator $-\Delta + V$, where the potential term $V$ is a matrix-valued function whose entries belong to $L^1_{\rm loc}(\mathbb{R}^d)$ and, for every $x\in\mathbb{R}^d$, $V(x)$ is…

Analysis of PDEs · Mathematics 2024-01-02 Davide Addona , Vincenzo Leone , Luca Lorenzi , Abdelaziz Rhandi

Many coupled evolution equations can be described via $2\times2$-block operator matrices of the form $\mathcal{A}=\begin{bmatrix} A & B \\ C & D \end{bmatrix}$ in a product space $X=X_1\times X_2$ with possibly unbounded entries. Here, the…

Functional Analysis · Mathematics 2025-02-27 Antonio Agresti , Amru Hussein

We study elliptic and parabolic problems governed by the singular elliptic operators \begin{align*} \mathcal L=y^{\alpha_1}\mbox{Tr }\left(QD^2_xu\right)+2y^{\frac{\alpha_1+\alpha_2}{2}}q\cdot \nabla_xD_y+\gamma y^{\alpha_2}…

Analysis of PDEs · Mathematics 2024-05-17 Giorgio Metafune , Luigi Negro , Chiara Spina

We develop a maximal regularity approach in temporally weighted $L_p$-spaces for vector-valued parabolic initial-boundary value problems with inhomogeneous boundary conditions, both of static and of relaxation type. Normal ellipticity and…

Analysis of PDEs · Mathematics 2012-02-20 Martin Meyries , Roland Schnaubelt

In this paper, we investigate $L^p-$boundedness of the bilinear spherical maximal function associated with a general set $E\subset\R_+$. We quantify the range of $L^p-$boundedness in terms of a dilation-invariant notion of upper Minkowski…

Classical Analysis and ODEs · Mathematics 2026-04-21 Surjeet Singh Choudhary , Chun-Yen Shen , Saurabh Shrivastava

We prove several noncommutative maximal inequalities associated with convex functions, including a Doob type inequality for a convex function of maximal operators on noncommutative martingales, noncommutative Dunford-Schwartz and Stein…

Operator Algebras · Mathematics 2014-12-31 Turdebek N. Bekjan , Zeqian Chen , Adam Osȩkowski

We study maximal regularity with respect to continuous functions for strongly continuous semigroups on locally convex spaces as well as its relation to the notion of admissible operators. This extends several results for classical strongly…

Functional Analysis · Mathematics 2025-10-22 Karsten Kruse , Felix L. Schwenninger

We investigate the problem of $L^p$-maximal regularity on Banach spaces having a Schauder basis. Our results improve those of a recent paper.

Functional Analysis · Mathematics 2007-05-23 N. J. Kalton , G. Lancien

In [11], employing the technique of noncommutative interpolation, a maximal ergodic theorem in noncommutative Lp-spaces, 1 < p < infinity, was established and, among other things, corresponding maximal ergodic inequalities and individual…

Operator Algebras · Mathematics 2015-02-10 Vladimir Chilin , Semyon Litvinov

In this paper we investigate maximal $L^q$-regularity for time-dependent viscous Hamilton-Jacobi equations with unbounded right-hand side and superlinear growth in the gradient. Our approach is based on the interplay between new integral…

Analysis of PDEs · Mathematics 2021-08-31 Marco Cirant , Alessandro Goffi

We investigate the $L^p$ mapping properties of maximal functions associated with analytic hypersurfaces in $\mathbb R^d$, with a particular emphasis on the role of transversality. Around points that are not transversal, we show that the…

Classical Analysis and ODEs · Mathematics 2026-01-06 Jin Bong Lee , Juyoung Lee , Jeongtae Oh , Sewook Oh

We prove endpoint bounds for derivatives of fractional maximal functions with either smooth convolution kernel or lacunary set of radii in dimensions $n \geq 2$. We also show that the spherical fractional maximal function maps $L^{p}$ into…

Classical Analysis and ODEs · Mathematics 2021-02-23 David Beltran , João Pedro Ramos , Olli Saari

We establish an explicit maximum principle for the Dirichlet problem associated with the $p$-Laplacian ($p>1$), where the constant depends on both $p$ and the geometry of the domain. From this result we derive two main applications. First,…

Analysis of PDEs · Mathematics 2026-05-19 Kevin Carrillo-Reina , Jean C. Cortissoz

We study the regularity of the bilinear maximal operator when applied to Sobolev functions, proving that it maps $W^{1,p}(\mathbb{R}) \times W^{1,q}(\mathbb{R}) \to W^{1,r}(\mathbb{R})$ with $1 <p,q < \infty$ and $r\geq 1$, boundedly and…

Classical Analysis and ODEs · Mathematics 2011-06-06 Emanuel Carneiro , Diego Moreira

We identify a large class of constant (complex) coefficient, second order elliptic systems for which the Dirichlet problem in the upper-half space with data in $L^p$-based Sobolev spaces, $1<p<\infty$, of arbitrary smoothness $\ell$, is…

Analysis of PDEs · Mathematics 2014-05-14 José María Martell , Dorina Mitrea , Irina Mitrea , Marius Mitrea

In this work, we consider the Cauchy problem for $u' - Au = f$ with $A$ the Laplacian operator on some Riemannian manifolds or a sublapacian on some Lie groups or some second order elliptic operators on a domain. We show the boundedness of…

Classical Analysis and ODEs · Mathematics 2007-10-17 Pascal Auscher , Frédéric Bernicot , Jiman Zhao

The paper concerns the magnetic Schr\"odinger operator on $R^n$. Under certain conditions, given in terms of the reverse H\"older inequality on the magnetic field and the electric potential, we prove some $L^p$ estimates on the Riesz…

Classical Analysis and ODEs · Mathematics 2009-05-05 Besma Ben Ali

We extend the theorems of [G1] on $L^p$ to $L^p_s$ Sobolev improvement for translation invariant Radon and fractional singular Radon transforms over hypersurfaces, proving $L^p$ to $L^q_s$ boundedness results for such operators. Here $q…

Classical Analysis and ODEs · Mathematics 2019-10-11 Michael Greenblatt