Institute of Mathematical Sciences, C.I.T., Chennai. Algebraic number theory, algebraic geometry.

University of Liverpool. Ergodic theory; arithmetic. Diophantine approximation and uniform distribution. Harmonic analysis and probability theory.

Joetsu University of Education. Algebraic number theory: the distribution of the discriminants of algebraic number fields, class numbers of binary forms, zeta functions associated with prehomogeneous vector spaces and Igusa's local zeta functions.

Tokyo Metropolitan University. Algorithmic number theory. Home of TNT (Tools for Number Theory) and NZMATH.

City University of New York. Additive number theory. Contact information and bibliography.

Universität Ulm. Integral representations of finite groups and lattices, orthogonal representations of finite groups and group rings over p-adic integers.

Technische Universität Darmstadt. Computations in algebraic number fields and implementation of algorithms in LiDIA.

Université Pierre et Marie Curie (Paris VI). Algebraic number theory, arithmetic algebraic geometry.

University of Georgia. Analytic number theory: the connections between the Riemann zeta function and random matrix theory.

Computations on primes, prime gaps, prime constellations (twins, triplets, and quadruplets) and their reciprocal sums (to extrapolate estimates for the corresponding Brun's constants). Description of the infamous Pentium division bug.

ConSol Software GmbH. Computation of number-theoretical constants.

Université de Caen. Diophantine equations, the ABC conjecture, polynomials, elliptic curves, Szpiro's conjecture.

University of Utah. Arithmetic algebraic geometry.