The University of Southampton
Mathematical Sciences
(023) 8059 3654

Professor Ian J Leary BA, MA, PhD


Professor Ian J Leary's photo
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Professor Ian J Leary is a Professor of Pure Mathematics at the University of Southampton.


Sept 2011 - date Professor of Pure Mathematics, University of Southampton

2004 - 2011 Associate Professor and Full Professor at the Ohio State University

1996 - 2004 Lecturer, Reader and Professor at University of Southampton 

Between 1990 and 1996 held post-doctoral positions at QMW London, ETH Zurich, CRM Barcelona and MPI Bonn

1990 PhD in Pure Mathematics, University of Cambridge

1986 BA in Mathematics, University of Cambridge





Research interests

Group theory, especially geometric group theory and its connections with homological algebra, geometric topology and algebraic topology. I particularly like creating (or should I say discovering?) examples of mathematical objects (such as groups or spaces) that have unusual combinations of properties.
The main themes that have appeared in my research in recent years are: classifying spaces for families of subgroups; finiteness condition for groups and connections with algebraic K-theory; spaces satisfying non-positive curvature conditions such as CAT(0)-spaces; special classes of groups such as Artin groups, Coxeter groups and Bestvina-Brady groups. 

If you are interested in working on a PhD in any of these areas, I encourage you to contact me.

Research group

Pure Mathematics



Book Chapter

    Leary, I. J., Niblo, G. A., & Wise, D. T. (1999). Some free-by-cyclic groups. In C. M. Campbell, E. F. Robertson, N. Ruscuc, & G. C. Smith (Eds.), Groups St Andrews 1997 in Bath. (pp. 512-516). (London Mathematical Society Lecture Note Series; No. 261). Cambridge, UK: Cambridge University Press. DOI: 10.2277/0521655765


MATH6156 Modules & Representations

Professor Ian J Leary
Building 54 Mathematical Sciences University of Southampton Highfield Southampton SO17 1BJ

Room Number:54/8013

Telephone:(023) 8059 3654

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