An initial problem for a class of weakly degenerate semilinear equations with lower order fractional derivatives

G. D. Baybulatova   ; M. V. Plekhanova

The Bulletin of Irkutsk State University. Series Mathematics, Tome 35 (2021), pp. 34-48

Résumé

An initial value problem is studied for a class of evolutionary equations with a weak degeneration, which are nonlinear with respect to lower order fractional Gerasimov – Caputo derivatives. The linear part of the equations contains a respectively bounded pair of operators. Unique local solvability is proved in the case of a nonlinear operator depending on elements of the degeneration space only. Examples of an equation and a system of partial differential equations are given, the initial-boundary value problems for which are reduced to the initial problem for an equation in a Banach space of the studied class.

Détail

Keywords: fractional Gerasimov – Caputo derivative, fractional order differential equation, degenerate evolution equation, semilinear equation.

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