Czesław Bessaga

Czesław Marian Bessaga (born February 26, 1932 in Lwów ) is a Polish mathematician who deals with functional analysis and infinite-dimensional topology .

Czesław Bessaga received his doctorate in 1959 under Stanisław Mazur . From 1965 to 1998 he headed the Chair of Functional Analysis at the Mathematical Institute of Warsaw University , from 1970 to 1975 he was Deputy Director of the Mathematical Institute and from 1984 to 1987 Vice Dean of the Faculty of Mathematics, Computer Science and Mechanics at Warsaw University. He has been a corresponding member of the Polish Academy of Sciences (PAN) since 1976 and a full member since 1991. In the 1990s he was chairman of the Mathematical Olympiad Committee. Bessaga is co-editor of the mathematical journal Studia Mathematica .

A reverse of Banach's Fixed Point Theorem is known as Bessaga's Theorem . Together with Aleksander Pełczyński , Bessaga characterized the isomorphism classes of Banach spaces of continuous functions on zero-dimensional , compact , metric spaces and proved the so-called selection principle of Bessaga-Pelczynski .

Books

C. Bessaga, A. Pełczyński: Selected topics in infinite-dimensional topology . Monograph Matematyczne, Volume 58, Verlag Wydawnictwo Naukowe PWN (1975)

Prizes and awards

Stefan Banach Prize (1961)
Knight's Cross of the Order of Polonia Restituta (1973)

Individual evidence

↑ Czeslaw Bessaga in the Mathematics Genealogy Project (English)
^ Czesław Marian Bessaga in the PAN, there with a picture
↑ WA Kirk, B. Sims: Handbook of Metric Fixed Point Theory , ISBN 978-90-481-5733-4 , Theorem 8.1
↑ C. Bessaga, A. Pelczynski, Spaces of continuous functions. IV. On isomorphical classification of spaces of continuous functions , Studia Mathematica (1960), Volume 19, pages 53-62
↑ C. Bessaga, A. Pelczynski: On bases and unconditional convergence of series in Banach spaces , Studia Mathematica (1958), Volume 17, Part 2, pages 151-164, Theorem 3

personal data
SURNAME	Bessaga, Czesław
ALTERNATIVE NAMES	Bessaga, Czesław Marian
BRIEF DESCRIPTION	Polish mathematician
DATE OF BIRTH	February 26, 1932
PLACE OF BIRTH	Lwów

[1] Czeslaw Bessaga in the Mathematics Genealogy Project (English)

[2] Czesław Marian Bessaga in the PAN, there with a picture

[3] WA Kirk, B. Sims: Handbook of Metric Fixed Point Theory , ISBN 978-90-481-5733-4 , Theorem 8.1

[4] C. Bessaga, A. Pelczynski, Spaces of continuous functions. IV. On isomorphical classification of spaces of continuous functions , Studia Mathematica (1960), Volume 19, pages 53-62

[5] C. Bessaga, A. Pelczynski: On bases and unconditional convergence of series in Banach spaces , Studia Mathematica (1958), Volume 17, Part 2, pages 151-164, Theorem 3