Geodesic
Invariant approximations
Mathematica Applicanda, Tome 9 (1981) no. 17, pp. 17-22.

Voir la notice de l'article provenant de la source Annales Societatis Mathematicae Polonae Series

From the text: "We generalize a theorem of G. Meinardus [Arch. Rational Mech. Anal. 14 (1963), 301–303; MR0156143] in two directions: first, instead of concrete function spaces we consider arbitrary normed spaces and secondly, we deal with the subspace of models—approximating elements—that can be of arbitrary measure. The operator in regard to which we study the invariability of the approximation is linear.''
DOI : 10.14708/ma.v9i17.1512
Classification : 41A65
Mots-clés : Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) 
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Antoni Smoluk. Invariant approximations. Mathematica Applicanda, Tome 9 (1981) no. 17, pp.  17-22. doi : 10.14708/ma.v9i17.1512. http://geodesic.mathdoc.fr/articles/10.14708/ma.v9i17.1512/

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