Best approximation to an element in a banach space by a system of seminorms

DOI10.1007/BF01138674zbMath0436.41022MaRDI QIDQ1140818

A. S. Kats

Publication date: 1979

Published in: Mathematical Notes (Search for Journal in Brave)

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

Cites Work

• Sufficient conditions for extremum, penalty functions and regularity
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