 Aleksander Pełczyński

Aleksander "Olek" Pełczyński (2 July 1932, Tarnopol, Poland – 20 December 2012, Wrocław) was a Polish mathematician.Pełczyński studied mathematics from 1950 to 1956 at the University of Warsaw and received there his doctorate in 1958 under Stanisław Mazur with dissertation "Własności izomorficzne przestrzeni Banacha związane ze słabą zbieżnością bezwarunkową szeregów" (Isomorphic properties of Banach spaces with regard to unconditional convergence of series).