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Exact bounds for the uniform approximation by cardinal spline interpolants. (English) Zbl 0812.41007
The author establishes the exact bounds for uniform approximation by $$r$$th degree cardinal spline interpolants for the real axis case as well as for $$p$$-periodic interpolation, where $$r$$ and $$p$$ are arbitrary positive integers, thus improving a result of Reimer who considered only the case where $$r$$ and $$p$$ are odd.
Reviewer: E.Quak (Schwerte)

##### MSC:
 41A15 Spline approximation
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