A boundary-value problem with an operator in the boundary conditions, for a second-order elliptic differential-operator equation
type: Item
instance of: scholarly article
title: A boundary-value problem with an operator in the boundary conditions, for a second-order elliptic differential-operator equation
zbMATH Open document ID: 0633.47031
DOI: 10.1007/BF00971310
author: Sasun Yakubov
author: Bahram A. Aliev
published in: Siberian Mathematical Journal
publication date: 1986-01-01T00:00:00Z
full work available at URL: https://eudml.org/doc/62599
review text: We prove first a theorem on an isomorphism realized by the operator generated by a second-order elliptic differential-operator equation and by boundary conditions which contain, in general, unbounded operators. After this, making use of the isomorphism theorem, we prove the Fredholm property for the perturbed equation.
Mathematics Subject Classification ID: 47E05
Mathematics Subject Classification ID: 47F05
Mathematics Subject Classification ID: 47A53
zbMATH DE Number: 4030314
zbMATH Keywords: second-order elliptic differential-operator equation
zbMATH Keywords: boundary conditions
zbMATH Keywords: unbounded operators
zbMATH Keywords: Fredholm property for the perturbed equation
Wikidata QID: Q115394664
MaRDI profile type: Publication
cites work: Q3289303
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description: scientific article; zbMATH DE number 4030314