Wiesław Żelazko

Wiesław Tadeusz Żelazko
Born(1933-02-16)16 February 1933
Łódź, Poland
Died6 November 2025(2025-11-06) (aged 92)
Alma materUniversity of Warsaw
Known forGleason–Kahane–Żelazko theorem; Hirschfeld–Żelazko theorem
Awards
Scientific career
FieldsFunctional analysis; topological algebras
InstitutionsInstitute of Mathematics, Polish Academy of Sciences
Doctoral advisorStanisław Mazur
Doctoral studentsZbigniew Słodkowski; Jaroslav Zemánek

Wiesław Tadeusz Żelazko (16 February 1933 – 6 November 2025) was a Polish mathematician who specialised in functional analysis and the theory of topological and Banach algebras. His name is attached to well-known theorems in Banach algebra theory, he held a full professorship at the Institute of Mathematics of the Polish Academy of Sciences, received major national and scientific awards, and served as president of the Polish Mathematical Society.

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