Existence Families, Functional Calculi and Evolution Equations

Name: Existence Families, Functional Calculi and Evolution Equations
Brand: Springer, Berlin
SKU: 9783540577034
Price: 249.4 RON
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Autor: Ralph DeLaubenfels

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Editura: Springer, Berlin

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This book presents an operator-theoretic approach to ill-posed evolution equations. It presents the...

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Autor

Ralph DeLaubenfels

Limbă

engleză

Legare

Carte - Carte broșată

Publicat

1994

Pagini

244

EAN

9783540577034

ISBN

3540577033

Enbook ID

05274372

Editura

Springer, Berlin

Greutate

398

Dimensiuni

155 x 236 x 17

Descriere completă

This book presents an operator-theoretic approach to ill-posed evolution equations. It presents the basic theory, and the more surprising examples, of generalizations of strongly continuous semigroups known as 'existent families' and 'regularized semigroups'. These families of operators may be used either to produce all initial data for which a solution in the original space exists, or to construct a maximal subspace on which the problem is well-posed. Regularized semigroups are also used to construct functional, or operational, calculi for unbounded operators. The book takes an intuitive and constructive approach by emphasizing the interaction between functional calculus constructions and evolution equations. One thinks of a semigroup generated by A as etA and thinks of a regularized semigroup generated by A as etA g(A), producing solutions of the abstract Cauchy problem for initial data in the image of g(A). Material that is scattered throughout numerous papers is brought together and presented in a fresh, organized way, together with a great deal of new material.

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Existence Families, Functional Calculi and Evolution Equations

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