**Dave Morris**

- Faculty

- Mathematics & Computer Science
- Office: C514
(University Hall)

- Phone: (403) 329-2346

- Fax: (403) 317-2882

- Email:

### Degrees

B.A., M.S., Ph.D. (Mathematics)### Expertise

Algebraic properties of infinite groups of matrices, Normal subgroups, homomorphisms, and actions on manifolds, Applications of finite groups to problems in graph theory### Research Areas

Arithmetic groups### Selected Publications

K. Kutnar, D. Marusic, D. W. Morris, J. Morris, and P. Sparl: Hamiltonian cycles in Cayley graphs whose order has few prime factors. Ars Mathematica Contemporanea 5 (2012) 27-71.D. W. Morris: Can lattices in SL(n, R) act on the circle?, in "Geometry, Rigidity, and Group Actions", edited by B. Farb and D. Fisher. University of Chicago Press, Chicago, 2011, pp. 158-207.

D. W. Morris: What is a superrigid subgroup?, in T. Y. Chow and D. C. Isaksen, eds.: "Communicating Mathematics". American Mathematical Society, Providence, R.I., 2009, pp. 189-206.

D. W. Morris: Amenable groups that act on the line. Algebraic & Geometric Topology. 6 (2006): 2509-2518.

D. W. Morris: Ratner's Theorems on Unipotent Flows. University of Chicago Press, 2005.