Mathematician:Béla Szőkefalvi-Nagy

Mathematician
Hungarian mathematician who contributed to the theory of Fourier series and approximation theory.

His most important achievements were made in functional analysis, especially in the theory of Hilbert space operators.

Nationality
Hungarian

History

 * Born: 29 July 1913 in Kolozsvár
 * Died: 21 December 1998 in Szeged

Theorems and Definitions

 * Sz.-Nagy's Dilation Theorem
 * Erdős-Nagy Theorem (with )

Publications

 * 1942: Spektraldarstellung linearer Transformationen des Hilbertschen Raumes
 * 1953: Leçons d'analyse fonctionnelle (with )
 * 1967: Analyse harmonique des opérateurs de l'espace de Hilbert (with )
 * 1988: Funkcionálanalízis (with )
 * 1990: (with ) (translation of Funkcionálanalízis)