scientific article; zbMATH DE number 3367693
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zbMath0232.47070MaRDI QIDQ5640302
Publication date: 1970
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Equations involving nonlinear operators (general) (47J05) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Linear operator approximation theory (47A58) General theory of difference equations (39A05)
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