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A classical pseudodifferential operator $P$ on $R^n$ satisfies the $\mu$-transmission condition relative to a smooth open subset $\Omega $, when the symbol terms have a certain twisted parity on the normal to $\partial\Omega $. As shown…

Analysis of PDEs · Mathematics 2016-01-20 Gerd Grubb

In this paper, we consider the dual fractional parabolic problem in the right half space. We prove that the positive solutions are strictly increasing in $x_1$ direction without assuming the solutions be bounded. So far as we know, this is…

Analysis of PDEs · Mathematics 2023-03-21 Wenxiong Chen , Lingwei Ma

In this paper we consider the evolution equation $\partial_t u=\Delta_\mu u+f$ and the corresponding Cauchy problem, where $\Delta_\mu$ represents the Bessel operator $\partial_x^2+(\frac{1}{4}-\mu^2)x^{-2}$, for every $\mu>-1$. We…

Analysis of PDEs · Mathematics 2017-02-17 Jorge J. Betancor , Marta de León-Contreras

We study asymptotic behavior in a class of non-autonomous second order parabolic equations with time periodic unbounded coefficients in $\mathbb R\times \mathbb R^d$. Our results generalize and improve asymptotic behavior results for Markov…

Analysis of PDEs · Mathematics 2009-08-11 L. Lorenzi , A. Lunardi , A. Zamboni

The nonlinear Sch\"{o}dinger equation (NLSE) with a non-Hermitian term is the model for various phenomena in nonlinear open quantum systems. We deal with the Cauchy problem for the nonlocal generalization of multidimensional NLSE with a…

Mathematical Physics · Physics 2024-03-08 A. E. Kulagin , A. V. Shapovalov

Motivated by wave or Dirac equations on noncommutative deformations of Minkowski space, linear integro-differential equations of the form $(D+\lambda W)f=0$ are studied, where $D$ is a normal or prenormal hyperbolic differential operator on…

Mathematical Physics · Physics 2021-09-15 Gandalf Lechner , Rainer Verch

This work is devoted to the study of a nonlocal-in-time evolutional problem for the first order differential equation in Banach space. Our primary approach, although stems from the convenient technique based on the reduction of a nonlocal…

Dynamical Systems · Mathematics 2016-09-26 Dmytro Sytnyk , Volodymyr Makarov , Vitalii Vasylyk

The global dynamics and regularity of parabolic-hyperbolic systems is an interesting topic in PDEs due to the coupling of competing dissipation and hyperbolic effects. This paper is concerned with the Cauchy problem of a…

Analysis of PDEs · Mathematics 2019-09-10 Hongyun Peng , Zhian Wang

We study the occupation time statistics for non-Markovian random walkers based on the formalism of the generalized master equation for the Continuous-Time Random Walk. We also explore the case when the random walker additionally undergoes a…

Statistical Mechanics · Physics 2024-12-09 Vicenç Méndez , Rosa Flaquer-Galmés , Arnab Pal

In this paper we prove a parabolic version of the Littlewood-Paley inequality for a class of time-dependent local and non-local operators of arbitrary order, and as an application we show this inequality gives a fundamental estimate for the…

Functional Analysis · Mathematics 2015-03-10 Ildoo Kim , Kyeong-Hun Kim , Sungbin Lim

We study the Cauchy problem for first-order quasi-linear systems of partial differential equations. When the spectrum of the initial principal symbol is not included in the real line, i.e., when hyperbolicity is violated at initial time,…

Analysis of PDEs · Mathematics 2016-04-05 Nicolas Lerner , Toan T. Nguyen , Benjamin Texier

The Cauchy problem is investigated for the parabolic type in the some finite part $[t_0, t_1] \subset [0, \infty)$ of the semi axis $t \in [0, \infty)$ and degenarated to Schrodinger type in the remain part of the same semi axes the second…

Mathematical Physics · Physics 2007-05-23 Hikmat I. Ahmadov

The fractional heat operator $(\partial_t-\Delta_x)^s$ and Continuous Time Random Walks (CTRWs) are interesting and sophisticated mathematical models that can describe complex anomalous systems. In this paper, we prove asymptotic mean value…

Analysis of PDEs · Mathematics 2022-01-20 Carmina Fjellström , Kaj Nyström , Yuqiong Wang

We study linear and quasilinear Venttsel initial-boundary value problems for parabolic operators with discontinuous coefficients. On the basis of the a priori estimates obtained, strong solvability in composite Sobolev spaces is proved.

Analysis of PDEs · Mathematics 2023-02-07 D. E. Apushkinskaya , A. I. Nazarov , D. K. Palagachev , L. G. Softova

In this Note, we present a Calder\'on-type uniqueness theorem on the Cauchy problem of stochastic partial differential equations. To this aim, we introduce the concept of stochastic pseudo-differential operators, and establish their…

Probability · Mathematics 2010-11-30 Xu Liu , Xu Zhang

Pseudo-differential operator equations with parameter are studied. Uniform separability properties and resolvent estimates are obtained in terms of fractional derivatives. Moreover, maximal regularity properties of the pseudo-differential…

Analysis of PDEs · Mathematics 2017-06-06 Veli Shakhmurov

The dynamical correlations of nonlocal operators in general quadratic open fermion systems is still a challenging problem. Here we tackle this problem by developing a new formulation of open fermion many-body systems, namely, the…

Quantum Physics · Physics 2022-05-17 Qing-Wei Wang

In the present paper we study the existence of solutions for some nonlocal problems involving Orlicz-Sobolev spaces. The approach is based on sub-supersolutions.

Analysis of PDEs · Mathematics 2018-04-24 Giovany M. Figueiredo , Abdelkrim Moussaoui , Gelson C. G. dos Santos , Leandro S. Tavares

We consider the classical Dirac operator on globally hyperbolic manifolds with timelike boundary and show well-posedness of the Cauchy initial-boundary value problem coupled to APS-boundary conditions. This is achieved by deriving suitable…

Analysis of PDEs · Mathematics 2026-02-25 Nicolò Drago , Nadine Große , Simone Murro

The non autonomous Cauchy problem for time dependent 1D point interactions is considered. The regularity assumptions for the coupling parameter are accurately analyzed and show that the general results for non autonomous linear evolution…

Mathematical Physics · Physics 2009-04-01 Taoufik Hmidi , Andrea Mantile , Francis Nier