Williams College. Arithmetic of function fields. Preprints, teaching information.

Texas A+M University. Number theory and arithmetic geometry: elliptic curves and Drinfeld modules, in particular canonical heights, special values of analytic functions, L-series and modular forms.

University of Plovdiv "Paisii Hilendarski". Analytic number theory: additive prime number theory, distribution of primes, exponential sums, sieve methods, Riemann zeta-function and Dirichlet L-functions.

University of Rochester. Arithmetic of quaternion algebras and its connections to modular forms, Brandt matrices, Hecke operators, and Ramanujan graphs. Pedagogical use of the internet.

Dartmouth College. Analytic and computational number theory. Publications.

Colorado State University. Arithmetic geometry, specifically Galois theory of curves in characteristic p. Publications.