On the Sharpness of Non-Optimal Approximation for Semigroup Operators.
Butzer, P.L. ; Dickmeis, W.
Manuscripta mathematica, Tome 53 (1985), p. 243-252 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1985-01-01
EUDML-ID : urn:eudml:doc:155073 
@article{GDZPPN002226480,
     title = {On the Sharpness of Non-Optimal Approximation for Semigroup Operators.},
     journal = {Manuscripta mathematica},
     volume = {53},
     year = {1985},
     pages = {243-252},
     zbl = {0583.41020},
     url = {http://dml.mathdoc.fr/item/GDZPPN002226480}
}

Butzer, P.L.; Dickmeis, W. On the Sharpness of Non-Optimal Approximation for Semigroup Operators.. Manuscripta mathematica, Tome 53 (1985) pp. 243-252. http://gdmltest.u-ga.fr/item/GDZPPN002226480/