Department of Mathematics
- NAC 8/134a
- Office phone
- (212) 650-5482
I received my Ph.D. at the University of California at Berkeley in 1998 where I was a student of John Rhodes. I had an NSF-NATO postdoc at the University of Porto, Portugal, where I also taught for 2 years. I spent 9 years at Carleton University in Ottawa, Canada before coming to CCNY. I'm originally from NYC, so this is a bit of a homecoming for me.
I am an algebraist interested in a vast array of subjects including finite semigroup theory, geometric group theory, representation theory and automata theory. Another fascinating subject for me is the interconnections between etale groupoids, inverse semigroups and operator algebras.
- The q-theory of Finite Semigroups with John Rhodes. Springer, Monographs in Mathematics, 2009
- Representation Theory of Finite Groups: An Introductory Approach. Springer, Universitext, 2011
Graduate Adviser Info
I am acting graduate adviser while Professor Cleary is on sabbatical.
- Office Hours for advising are Thursdays, 5:00-5:45pm, or by appointment.
- Most relevant information about our Master's program can be found here.
- All graduate student related inquiries that are not answered here should be sent to firstname.lastname@example.org.
- Applications for admission to the program for Fall 2013 are due May 1. More information on how to apply and funding can be found here.
- S. W. Margolis and B. Steinberg: Quivers of monoids with basic algebras, Compositio Mathematica 148 (2012), 1516-1560. Abstract
- K. Henckell, J. Rhodes and B. Steinberg: An effective lower bound for group complexity of semigroups and automata, Trans. Amer. Math. Soc. 364 (2012), 1815-1857 . Abstract
- Alfredo Costa and Benjamin Steinberg: Profinite groups associated to sofic shifts are free, Proc. Lond. Math. Soc. (3) 102 (2011), no. 2, 341–369. Abstract
- Benjamin Steinberg: A groupoid approach to discrete inverse semigroup algebras, Adv. in Math. 223 (2010), 689-727. Abstract
- J. Almeida, S. W. Margolis, B. Steinberg and M. V. Volkov: Representation theory of finite semigroups, semigroup radicals and formal language theory, Trans. Amer. Math. Soc. 361 (2009), 1429-1461. Abstract