scientific article; zbMATH DE number 3365941

zbMath0231.47008MaRDI QIDQ5638846

P. V. Kirillov

Publication date: 1970

Full work available at URL: https://eudml.org/doc/189045

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

Mathematics Subject Classification ID

Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Linear operator approximation theory (47A58) Equations and inequalities involving linear operators, with vector unknowns (47A50)

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