the Enciclopedia Treccani. 1904 births 1988 deaths Scientists from Wrocław 20th-century American mathematicians 20th-century German mathematicians Jewish emigrants from Nazi Germany to the United States Complex analysts Mathematical analysts Rockefeller Fellows Wolf Prize in Mathematics laureates Fellows of the American Academy of Arts and Sciences Members of the United States National Academy of Sciences University of Göttingen alumni Academic staff of the University of Göttingen Brown University faculty University of California, Berkeley College of Letters and Science faculty University of Minnesota faculty