Education:
- Ph.D., 1983, University of Maryland,
Advisor: Anatole Katok (Math Genealogy)
- MA, 1981, University of Maryland.
- BA, 1977, Tufts University.
Professional Positions:
- 2024 Professor Emeritus.
- 1999-2023, Professor of Mathematics, George Washington University, Washington D .
- 2000 (Spring), Visiting Scholar, U. of Maryland, U. Utrecht, Tsuda College.
- 1990-1999, Associate Professor of Mathematics, The George Washington University.
- 1993-1997, Chair, Department of Mathematics, The George Washington University.
- 1991/92, Member, The Mathematical Sciences Research Institute, Berkeley.
- 1991 (Fall), Visiting Scholar, University of Maryland.
- 1986-1990, Assistant Professor of Mathematics, The George Washington University.
- 1986/87, Member, Institute for Advanced Study, Princeton.
- 1984-1986, Lecturer in Mathematics, University of Pennsylvania, Philadelphia.
- 1983/84, Member, Mathematical Sciences Research Institute, Berkeley.
Ph.D. Students
Math Genealogy
- Hyeeun Jang, Directional Expansiveness, Ph.D. 2021.
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Erblin Mehmetaj, On the r-Continued Fraction Expansions of Real Numbers, Ph.D. 2014.
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Joseph Herning, Spectrum and Factors of Substitution Dynamical Systems, Ph.D. 2013.
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Tyler White, Topologically Mixing Tiling of R2 Generated by a Generalized Substitution, Ph.D. 2012.
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Tetyania Andress, The Spectrum and the First Čech Cohomology Group of a One Dimensional Tiling Dynamical System, Ph.D. 2007.
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Krzystof Wargan, S-adic Dynamical Systems and Bretteli Diagrams, Ph.D. 2002.
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Clifford Hansen, The Dynamics of Multidimensional Substitutions, Ph.D. 1999.
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Tom Fitzkee, Weakly Mixing Tiling Flows Arising from Interval Exchange Transformations, Ph.D. 1998.
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Karma Dajani, Simultaneous Recurrence of Weighted Cocycles, Ph.D. 1989.