Prasanna, Kartik
- UCLA. Modular forms. Thesis, teaching information.
- http://www.math.umd.edu/~kprasanna/

Pinch, Richard
- Computational number theory, arithmetic of elliptic curves, algebraic combinatorics and public-key cryptography. Publications, tables of Carmichael numbers and pseudoprimes.
- http://www.chalcedon.demon.co.uk/rgep/rcam.html

Pries, Rachel
- Colorado State University. Arithmetic geometry, specifically Galois theory of curves in characteristic p. Publications.
- http://www.math.colostate.edu/~pries/

Parsell, Scott
- Butler University. Exponential sums; Hardy-Littlewood method; Diophantine problems. Papers, thesis.
- http://blue.butler.edu/~sparsell/

Pierce, Lillian
- Princeton University. Analysis and number theory. Publications, junior, senior and MSc theses.
- http://www.princeton.edu/~lbpierce/

Prasad, Dipendra
- Tata Institute for Fundamental Research. Algebraic number theory, Automorphic forms, Representation theory. Publications.
- http://www.math.tifr.res.in/~dprasad/

Plater, Andrew J.
- University of Cambridge. Contact information.
- http://www.dpmms.cam.ac.uk/site2002/People/plater_aj.html

Pomerance, Carl
- Dartmouth College. Analytic and computational number theory. Publications.
- http://www.math.dartmouth.edu/~carlp/

Pollack, David
- Wesleyan University. Thesis "Explicit Hecke Actions on Modular Forms", Harvard, 1998 (PDF).
- http://www.math.wesleyan.edu/People/faculty_pollack.htm

Pizer, Arnold
- 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.
- http://www.math.rochester.edu/people/faculty/apizer/

Pacelli, Allison M.
- Williams College. Arithmetic of function fields. Preprints, teaching information.
- http://www.williams.edu/Mathematics/apacelli/

Papanikolas, Matt
- 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.
- http://www.math.tamu.edu/~map/