Alexandra Bellow

Alexandra Bellow
Oberwolfach, West Germany 1975
Born	Alexandra Bagdasar (1935-08-30) 30 August 1935 (age 88) Bucharest, Romania
Nationality	Romanian American
Alma mater	University of Bucharest Yale University
Spouses	Cassius Ionescu-Tulcea ​ ​ (m. 1956; div. 1969)​ Saul Bellow ​ ​ (m. 1974; div. 1985)​ Alberto Calderón ​ ​ (m. 1989; died 1998)​
Scientific career
Fields	Mathematics
Institutions	University of Pennsylvania University of Illinois at Urbana–Champaign Northwestern University
Thesis	Ergodic Theory of Random Series  (1959)
Doctoral advisor	Shizuo Kakutani

Alexandra Bellow (née Bagdasar; previously Ionescu Tulcea; born 30 August 1935) is a Romanian-American mathematician, who has made contributions to the fields of ergodic theory, probability and analysis.