Bernard (Bernie) Maskit (born 27 May 1935, died 15 March 2024) was an American mathematician who worked on Kleinian groups, low dimensional geometry and topology, and related topics.
Life and Work Maskit studied for both his bachelors and doctoral degrees at New York University, earning his Ph.D. in 1964 under the supervision of Lipman Bers,[1]with a thesis entitled On Klein's Combination Theorem.
[2] He then moved to the mathematics department at Stony Brook University, where he retired in 2008[3] and was then a professor emeritus until his death.
[5] Maskit’s main area of mathematical expertise was the study of Kleinian groups acting on low dimensional hyperbolic spaces, where he made fundamental contributions.
He is the author of the book Kleinian Groups (Grundlehren der Mathematischen Wissenschaften 287, Springer-Verlag, 1988)[6][7] and gave an invited talk about Kleinian groups at the 1974 International Congress of Mathematicians.