Conditions of Spectrum Localization for Operators not Close to Self-Adjoint Operators
- Authors: Ishkin K.K.1
 - 
							Affiliations: 
							
- Bashkir State University
 
 - Issue: Vol 97, No 2 (2018)
 - Pages: 170-173
 - Section: Mathematics
 - URL: https://journals.rcsi.science/1064-5624/article/view/225485
 - DOI: https://doi.org/10.1134/S1064562418020175
 - ID: 225485
 
Cite item
Abstract
The Keldysh theorem is generalized to an arbitrary closed operator that is not necessarily close to self-adjoint operators and has a resolvent of Schatten–von Neumann class Sp. Based on this theorem, conditions of spectrum localization are obtained for certain classes of non-self-adjoint differential operators.
About the authors
Kh. K. Ishkin
Bashkir State University
							Author for correspondence.
							Email: Ishkin62@mai.ru
				                					                																			                												                	Russian Federation, 							Ufa, Bashkortostan, 450076						
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