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We develop an elliptic theory based in $L^2$ of boundary value problems for general wedge differential operators of first order under only mild assumptions on the boundary spectrum. In particular, we do not require the indicial roots to be…

Analysis of PDEs · Mathematics 2013-10-29 Thomas Krainer , Gerardo A. Mendoza

We study boundary value problems for linear elliptic differential operators of order one. The underlying manifold may be noncompact, but the boundary is assumed to be compact. We require a symmetry property of the principal symbol of the…

Differential Geometry · Mathematics 2019-07-25 Christian Baer , Werner Ballmann

We study properties of pseudodifferential operators which arise in their use in boundary value problems. Smooth domains as well as intersections of smooth domains are considered.

Complex Variables · Mathematics 2022-05-03 Dariush Ehsani

This note is a description of some of the results obtained by the authors in connection with the problem in the title. These, discussed following a summary of background material concerning wedge differential operators, consist of the…

Analysis of PDEs · Mathematics 2014-03-28 Thomas Krainer , Gerardo A. Mendoza

An elliptic theory is constructed for operators acting in subspaces defined via odd pseudodifferential projections. Subspaces of this type arise as Calderon subspaces for first order elliptic differential operators on manifolds with…

Differential Geometry · Mathematics 2015-06-26 A. Yu. Savin , B. Yu. Sternin

We build a solvability theory of elliptic boundary-value problems in normed Sobolev spaces of generalized smoothness for any integrability exponent $p>1$. The smoothness is given by a number parameter and a supplementary function parameter…

Analysis of PDEs · Mathematics 2025-10-01 Anna Anop , Aleksandr Murach

We study boundary value problems for first-order elliptic differential operators on manifolds with compact boundary. The adapted boundary operator need not be selfadjoint and the boundary condition need not be pseudo-local. We show the…

Differential Geometry · Mathematics 2022-09-13 Christian Baer , Lashi Bandara

We study elliptic and parabolic boundary value problems in spaces of mixed scales with mixed smoothness on the half space. The aim is to solve boundary value problems with boundary data of negative regularity and to describe the…

Analysis of PDEs · Mathematics 2021-05-27 Felix Hummel

A pseudodifferential calculus for parameter-dependent operators on smooth manifolds with boundary in the spirit of Boutet de Monvel's algebra is constructed. The calculus contains, in particular, the resolvents of realizations of…

Analysis of PDEs · Mathematics 2024-10-17 Joerg Seiler

We define a class of boundary value problems on manifolds with fibered boundary. This class is in a certain sense a deformation between the classical boundary value problems and the Atiyah-Patodi-Singer problems in subspaces. The boundary…

Operator Algebras · Mathematics 2007-05-23 A. Yu. Savin , B. Yu. Sternin

We consider first-order elliptic differential operators acting on vector bundles over smooth manifolds with smooth boundary, which is permitted to be noncompact. Under very mild assumptions, we obtain a regularity theory for sections in the…

Differential Geometry · Mathematics 2026-02-12 Christian Baer , Lashi Bandara

For bounded domains $\Omega$ with Lipschitz boundary $\Gamma$, we investigate boundary value problems for elliptic operators with variable coefficients of fourth order subject to Wentzell (or dynamic) boundary conditions. Using form…

Analysis of PDEs · Mathematics 2024-05-06 David Ploß

This paper considers boundary value problems for a class of singular elliptic operators which appear naturally in the study of asymptotically anti-de Sitter (aAdS) spacetimes. These problems involve a singular Bessel operator acting in the…

Analysis of PDEs · Mathematics 2018-08-14 Oran Gannot

Elliptic integral-differential operators resembling the classical elliptic partial differential equations are defined over a compact d-dimensional p-adic domain together with associated Sobolev spaces relying on coordinate Vladimirov-type…

Analysis of PDEs · Mathematics 2025-04-10 Patrick Erik Bradley

We show that elliptic complexes of (pseudo)differential operators on smooth compact manifolds with boundary can always be complemented to a Fredholm problem by boundary conditions involving global pseudodifferential projections on the…

Analysis of PDEs · Mathematics 2020-04-29 B. -W. Schulze , J. Seiler

On filtered manifolds one can define a different notion of order for the differential operators. In this paper, we use generalized fixed point algebras to construct a pseudodifferential extension that reflects this behaviour. In the…

Operator Algebras · Mathematics 2025-01-13 Eske Ewert

Given a compact manifold with boundary endowed with an isometric action of a discrete group of polynomial growth, we state an index theorem for elliptic elements in the algebra of nonlocal operators generated by the Boutet de Monvel algebra…

Analysis of PDEs · Mathematics 2019-12-24 Anton Savin

We investigate general Shapiro-Lopatinsky elliptic boundary value problems on manifolds with polycylindrical ends. This is accomplished by compactifying such a manifold to a manifold with corners of in general higher codimension, and we…

Analysis of PDEs · Mathematics 2007-05-23 Thomas Krainer

We study elliptic theory on manifolds with boundary represented as a covering space. Firstly, we consider boundary value problems, where the boundary conditions are allowed to mix the values of functions in the fibers of the covering. We…

K-Theory and Homology · Mathematics 2007-05-23 A. Savin , B. Sternin

We consider linear boundary value problems for higher-order parameter-elliptic equations, where the boundary data do not belong to the classical trace spaces. We employ a class of Sobolev spaces of mixed smoothness that admits a generalized…

Analysis of PDEs · Mathematics 2025-04-28 Robert Denk , David Ploß , Sophia Rau , Jörg Seiler
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