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Journal of Mathematical Sciences

, Volume 236, Issue 6, pp 663–678 | Cite as

On Analytical in a Sector Resolving Families of Operators for Strongly Degenerate Evolution Equations of Higher and Fractional Orders

  • V. E. FedorovEmail author
  • E. A. Romanova
Article
  • 12 Downloads

Abstract

In this paper, we study a class of linear evolution equations of fractional order that are degenerate on the kernel of the operator under the sign of the derivative and on its relatively generalized eigenvectors. We prove that in the case considered, in contrast to the case of first-order degenerate equations and equations of fractional order with weak degeneration (i.e., degeneration only on the kernel of the operator under the sign of the derivative), the family of analytical in a sector operators does not vanish on relative generalized eigenspaces of the operator under the sign of the derivative, has a singularity at zero, and hence does not determine any solution of a strongly degenerate equation of fractional order. For the case of a strongly degenerate equation of integer order this fact does not hold, but the behavior of the family of resolving operators at zero cannot be examined by ordinary method.

Keywords and phrases

degenerate evolution equation differential equation of fractional order analytical in a sector resolving family of operators initial-boundary-value problem 

AMS Subject Classification

34G10 34A08 35R11 

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Chelyabinsk State UniversityChelyabinskRussia
  2. 2.South Ural State UniversityChelyabinskRussia

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