We present a new variant of the simultaneous Stone-Weierstrass approximation of a function and its partial derivatives, when the function takes its values in a Banach space, and provide an explicit and direct computation of this approximation. In the particular case of approximation by means of poly
β¦ LIBER β¦
Computable analysis of the abstract Cauchy problem in a Banach space and its applications I
β Scribed by Klaus Weihrauch; Ning Zhong
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 222 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0044-3050
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β¦ Synopsis
Abstract
We study computability of the abstract linear Cauchy problem
equation image
where A is a linear operator, possibly unbounded, on a Banach space X. We give necessary and sufficient conditions for A such that the solution operator K: x β¦ u of the problem (1) is computable. For studying computability we use the representation approach to computable analysis developed by Weihrauch and others. This approach is consistent with the model used by PourβEl/Richards. (Β© 2007 WILEYβVCH Verlag GmbH & Co. KGaA, Weinheim)
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