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After different variables and functions changes, the generalized dispersal problem, recalled in (1) below and considered in part I, see Labbas, Maingot and Thorel [14], leads us to consider, to study and to invert the sum of linear…

偏微分方程分析 · 数学 2024-03-06 Rabah Labbas , Stéphane Maingot , Alexandre Thorel

We prove the version of interpolation theorem for non-commutative vector-valued fully symmetric spaces associated with fully symmetric Banach function spaces and a von Neumann algebra equipped with a faithful semifinite normal trace.

算子代数 · 数学 2013-11-26 V. I. Chilin , A. K. Karimov

The full one sided shift space over finite symbols is approximated by an increasing sequence of finite subsets of the space. The Laplacian on the space is then defined as a renormalised limit of the difference operators defined on these…

动力系统 · 数学 2019-09-09 Shrihari Sridharan , Sharvari Neetin Tikekar

The problem of a differential operator left- and right division is solved in terms of generalized Bell polinomials for nonabelian differential unitary ring. The definition of the polinomials is made by means of recurrent relations. The…

数学物理 · 物理学 2007-05-23 Sergei B. Leble , A. A. Zaitsev

The paper deals with second order parabolic equations on bounded domains with Dirichlet conditions in arbitrary Euclidean spaces. Their interest comes from being models for describing reaction-diffusion processes in several frameworks. A…

偏微分方程分析 · 数学 2018-09-10 Irene Benedetti , Luisa Malaguti , Valentina Taddei

We study waves in a rod of finite length with a viscoelastic constitutive equation of fractional distributed-order type for the special choice of weight functions. Prescribing boundary conditions on displacement, we obtain case…

数学物理 · 物理学 2011-01-10 Teodor M. Atanackovic , Stevan Pilipovic , Dusan Zorica

A new transform-based approach is presented that can be used to solve mixed boundary value problems for Laplace's equation in non-convex and other planar domains, specifically the so-called Lipschitz domains. This work complements Crowdy…

复变函数 · 数学 2025-07-30 Jesse J. Hulse , Loredana Lanzani , Stefan G. Llewellyn Smith , Elena Luca

First time anharmonic potential $V(r)=ar^2+br-\frac{c}{r} \,,(a>0) $ is examined for $N$-dimensional Schr\"{o}dinger equation via Laplace transformation method. In transformed space, the behavior of the Laplace transform at the singular…

量子物理 · 物理学 2016-05-31 Tapas Das

We apply some recent developments of Baldoni-Beck-Cochet-Vergne on vector partition function, to Kostant's and Steinberg's formulae, for classical Lie algebras $A\_r$, $B\_r$, $C\_r$, $D\_r$. We therefore get efficient {\tt Maple} programs…

表示论 · 数学 2009-09-29 Charles Cochet

We introduce a class of fractional Dirac type operators with time variable coefficients by means of a Witt basis, the Djrbashian-Caputo fractional derivative and the fractional Laplacian, both operators defined with respect to some given…

经典分析与常微分方程 · 数学 2023-10-04 Joel E. Restrepo , Michael Ruzhansky , Durvudkhan Suragan

We present a general method of solving the Cauchy problem for a linear parabolic partial differential equation of evolution type with variable coefficients and demonstrate it on the equation with derivatives of orders two, one and zero. The…

数学物理 · 物理学 2016-05-18 Ivan D. Remizov

We prove an existence result for a class of Dirichlet boundary value problems with discontinuous nonlinearity and involving a Leray-Lions operator. The proof combines monotonicity methods for elliptic problems, variational inequality…

偏微分方程分析 · 数学 2007-05-23 Simona Dabuleanu , Vicentiu Radulescu

We extend the method of layer potentials to manifolds with boundary and cylindrical ends. To obtain this extension along the classical lines, we have to deal with several technical difficulties due to the non-compactness of the boundary,…

偏微分方程分析 · 数学 2007-05-23 Marius Mitrea , Victor Nistor

The orthogonality of Hilbert spaces whose elements can be represented as simple and double layer potentials is determined. Conditions of well-posed solvability of integral equations for the sum of simple and double layer potentials…

数值分析 · 数学 2020-01-20 Olexandr Polishchuk

The computation of the Dirichlet-Neumann operator for the Laplace equation is the primary challenge for the numerical simulation of the ideal fluid equations. The techniques used commonly for 2D fluids, such as conformal mapping and…

数值分析 · 数学 2019-03-19 Saad Qadeer , Jon Wilkening

The fractional Laplacian can be obtained as a Dirichlet-to-Neumann map via an extension problem to the upper half space. In this paper we prove the same type of characterization for the fractional powers of second order partial differential…

偏微分方程分析 · 数学 2010-04-27 P. R. Stinga , J. L. Torrea

We prove the existence of time quasi-periodic vortex patch solutions of the 2$d$-Euler equations in $\mathbb{R}^2$, close to uniformly rotating Kirchhoff elliptical vortices, with aspect ratios belonging to a set of asymptotically full…

偏微分方程分析 · 数学 2023-08-16 Massimiliano Berti , Zineb Hassainia , Nader Masmoudi

We introduce three types of partial fractional operators of variable order. An integration by parts formula for partial fractional integrals of variable order and an extension of Green's theorem are proved. These results allow us to obtain…

最优化与控制 · 数学 2013-02-12 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

We present a novel approach of discretizing variable coefficient diffusion operators in the context of meshfree generalized finite difference methods. Our ansatz uses properties of derived operators and combines the discrete Laplace…

数值分析 · 数学 2024-06-21 Heinrich Kraus , Jörg Kuhnert , Pratik Suchde

We prove existence of solutions to boundary value problems and obstacle problems for degenerate-elliptic, linear, second-order partial differential operators with partial Dirichlet boundary conditions using a new version of the Perron…

偏微分方程分析 · 数学 2013-04-19 Paul M. N. Feehan