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Title: Near-best approximations to some problems in applied mathematics
Authors: Levin, D
Issue Date: 1980
Publisher: Brunel University
Citation: Maths Technical Papers (Brunel University). pp 1-40.
Abstract: Expansion approximations are considered for the solution of Fredholm integral equations of the second kind, of two-point boundary value problems and of harmonic mixed boundary value problems. In each of these three cases the relation between the expansion approximations and the approximation of a certain integral is investigated. This relation leads to definitions of pointwise and of global "near-best" approxima- tions whose errors are given in terms of the error functional of a "best" quadrature formula.
Appears in Collections:Dept of Mathematics Research Papers
Mathematical Sciences

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