Chebyshev approximation by exponentials on finite subsets

Braess, Dietrich

doi:10.1090/S0025-5718-1973-0330854-0

Chebyshev approximation by exponentials on finite subsets
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Math. Comp. 27 (1973), 327-331 Request permission

Abstract:

This paper is concerned with Chebyshev approximation by exponentials on finite subsets. We take into account that varisolvency does not hold for exponentials in general. A bound for the derivatives of exponentials is established and convergence of the solutions for the discrete problems is proved in the topology of compact convergence on the open interval.

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