The Alperin–Brauer–Gorenstein theorem serves as a fundamental contribution to the classification of finite simple groups with quasi-dihedral Sylow 2-subgroups. This development, co-authored by Jonathan Lazare Alperin, remains a significant milestone in algebra. Throughout his career, Alperin produced over 60 papers, influencing modular representation theory and the study of local group theory from his base in the United States.
Academic Formation and Early Research
Born in Boston in 1937, Jonathan Lazare Alperin pursued his higher education at Harvard University and Princeton University. At Princeton, he completed his doctoral studies under the supervision of Graham Higman. His 1961 dissertation, titled On a Special Class of Regular p-Groups, established the initial trajectory of his research into algebraic structures.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →Contributions to Group Theory
Alperin spent the majority of his professional life as a professor at the University of Chicago. His research focused primarily on group theory, with specific attention to the local control of fusion, a concept he detailed in his 1967 paper, Sylow intersections and fusion. His 1987 conjecture, Weights for finite groups, continues to be a subject of active research within the field of modular representation theory.
Professional Recognition and Publications
His scholarly work has been cited over 500 times according to Mathematical Reviews. In addition to his research articles, he authored the textbook Groups and Representations in 1995 and Local Representation Theory in 1986. Beyond his writing, Alperin served as a visiting scholar at the Institute for Advanced Study during 1969, 1979, and 1983. He received a Guggenheim Fellowship in 1974 and became a fellow of the American Mathematical Society in 2013.
Fast facts
- Born: 1937, Boston
- Died: June 22, 2025, Chicago
- Education: Harvard University, Princeton University
- Career: University of Chicago professor
- Notable work: Alperin–Brauer–Gorenstein theorem
- Awards: Guggenheim Fellowship (1974), Fellow of the American Mathematical Society (2013)
Questions readers ask
What is the Alperin–Brauer–Gorenstein theorem?
It is a mathematical theorem proven in 1970 that provides a classification of finite simple groups containing quasi-dihedral Sylow 2-subgroups.
Under whom did Alperin complete his PhD?
He earned his doctorate at Princeton University under the guidance of Graham Higman.
Achievements
- Held posts at University of Chicago
- Fields: group theory and mathematics

