| Abramovich, Dan: Brown University. Algebraic number theory and topology. Pictures, research papers, notes, transparencies. |
| Abrashkin, Victor: University of Durham. Algebraic number theory. Publications and links. |
| Acciaro, Vincenzo: Universita' degli Studi del Molise. Computational number theory and computational algebra. Bibliography, curriculum vitae, courses information. |
| Achter, Jeff: Colorado State University, USA. Arithmetic geometry. Research papers and course information. |
| Adelmann, Clemens: Technical University Braunschweig. Algebraic number theory, elliptic curves, zeta- and L-functions. Publication and lectures. |
| Adhikari, Sukumar Das: Harish-Chandra Research Institute. Arithmetical functions, transcendence, and Ramsey-type questions in combinatorial number theory. List of publications. |
| Adleman, Leonard: University of Southern California. Number theory and Cryptography. Research papers, pictures, curriculum vitae. |
| Agashe, Amod: University of Texas. Number theory and cryptography. Research papers, slides. |
| Agboola, Adebisi: University of California at Santa Barbara. Number theory and arithmetic geometry. Research papers and seminar information. |
| Ahlgren, Scott: University of Illinois. Number theory. Publications, links, conferences and seminars. |
| Aitken, Wayne: California State University, San Marcos. Algebraic and geometric number theory. Research and publications. |
| Akbary, Amir: University of Lethbridge, Alberta. Number Theory, L-Functions, Modular Forms, Elliptic Curves. Papers, thesis. |
| Akiyama, Shigeki: Niigata University. Topology and number theory. Publications and links. |
| Alaca, Saban: Carleton University. Algebraic number fields and elliptic curves. Publications, course information, and links. |
| Alladi, Krishnaswami: University of Florida. Number theory, combinatorics, discrete mathematics. Contact information and links of interest. |
| Allombert, Bill: Institut National de Recherche en Informatique et en Automatique (INRIA). Algorithmic number theory. Publications and contact information. |
| Anderson, Greg: University of Minnesota. Number theory. Publications and links. |
| Anderson, Jackie: University of Wisconsin-Madison. Partition theory; number theory and combinatorics. |
| Andrews, George: Pennsytlvania State University. Theory of partitions. Publications, preprints, curriculum vitae. |
| Andrianov, Fedor: University of California at Los Angeles. Number theory. Curriculum vitae, work in progress, preprints and publications. |
| Antoniadis, Jannis: University of Cologne. Number Theory. Includes publications and contact information. |
| Apostol, Tom: California Institute of Technology. Analytic number theory. Recent publications. |
| Arif, Shamim Akhtar: Lahore University of Management Sciences, Pakistan. Algebraic number theory. |
| Arledge, Jane: Mesa State College. Computer science, mathematics, and statistics. Semester schedule information. |
| Armitage, Vernon: University of Durham. Number theory. Elliptic functions problems sheets and solutions. |
| Armon, Mary Vlastnik: Knox College, Illinois, USA. Logarithmic number theory, mathematical cryptography. Contact information and educational background. |
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