Wilhelm Magnus Hans Heinrich Wilhelm Magnus known as Wilhelm Magnus was a German-American mathematician . He made important contributions in combinatorial group theory , Lie algebras , mathematical physics , elliptic functions , and the study of tessellations.Biography In 1931, Magnus received his PhD from the University of Frankfurt , in Germany . His thesis, written under the direction of Max Dehn , was entitled Über unendlich diskontinuierliche Gruppen von einer definierenden Relation . Magnus was a faculty member in Frankfurt from 1933 until 1938. He refused to join the Nazi Party and, as a consequence, was not allowed to hold an academic post during World War II . In 1947 he became a professor at the University of Göttingen . In 1948 he emigrated to the United States to collaborate on the Bateman Manuscript Project as a co-editor, while a visiting professor at the California Institute of Technology . In 1950 he was appointed professor at the Courant Institute of Mathematical Sciences , in New York University . He stayed there until 1973, when he moved to the Polytechnic Institute of New York , before retiring in 1978. Among his doctoral students are Joan Birman , Martin Greendlinger, Edna Grossman , Herbert Keller , and Seymour Lipschutz .Selected works with Gilbert Baumslag and Bruce Chandler , eds.: Wilhelm Magnus, Collected Papers. Springer-Verlag 1984. Noneuclidean tessellations and their groups. Academic Press 1974.with Bruce Chandler: The History of Combinatorial Group Theory . A Case Study in the History of Ideas . Springer 1982. Wilhelm Magnus, Abraham Karrass, Donald Solitar , Combinatorial group theory . Presentations of groups in terms of generators and relations , Reprint of the 1976 second edition, Dover Publications , Inc., Mineola, NY , 2004. Wilhelm Magnus, Stanley Winkler, Hill's equation , Reprint of the 1979 second edition, Dover Publications, Inc., Mineola, NY, 2004.. with Israel Grossman: Groups and their Graphs. Random House 1965. Wilhelm Magnus, Fritz Oberhettinger, and Raz Pal Soni, Formulas and Theorems for the Special Functions of Mathematical Physics . Springer-Verlag New York Inc., New York , 1966. with Fritz Oberhettinger: Formeln und Lehrsätze für die speziellen Funktionen der mathematischen Physik. Springer 1943; 2nd edition, 1948; 3rd edition in English, Formulas and theorems for the functions of mathematical physics , Chelsea Pub. Co. 1966. with Fritz Oberhettinger: Anwendungen der elliptischen Funktionen in Physik und Technik. Springer 1949.
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