Fast convergent method for the $m$-point problem in Banach space

Details Fast convergent method for the $m$-point problem in Banach space Fast convergent method for the $m$-point problem in Banach space

2010-01-26

arxiv.org/abs/1001.4698v1

Mathematics

Numerical Analysis

22 pages

Scientific paper

The $m$-point nonlocal problem for the first order differential equation with an operator coefficient in a Banach space $X$ is considered. An exponentially convergent algorithm is proposed and justified provided that the operator coefficient $A$ is strongly positive and some existence and uniqueness conditions are fulfilled. This algorithm is based on representations of operator functions by a Dunford-Cauchy integral along a hyperbola enveloping the spectrum of $A$ and on the proper quadratures involving short sums of resolvents. The efficiency of the proposed algorithms is demonstrated by numerical examples.

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