scientific article

zbMath0979.47022MaRDI QIDQ2740295

Ya. I. Grushka

Publication date: 16 September 2001

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

direct approximation probleminverse approximation problemsemigroups of normal operators

Mathematics Subject Classification ID

One-parameter semigroups and linear evolution equations (47D06) Linear operators belonging to operator ideals (nuclear, (p)-summing, in the Schatten-von Neumann classes, etc.) (47B10) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

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