Howson, Susan  
   University of Oxford. Arithmetic of elliptic curves, Iwasawa theory, p-adic L-functions and the theory of Euler systems. Papers, seminars and other resources.
   http://www.maths.ox.ac.uk/~howson/

Hughes, Chris  
   Isaac Newton Institute. Application of random matrix theory to the Riemann zeta function and other L-functions.
   http://www.aimath.org/~hughes/

Hess, Florian  
   Technische Universität Berlin. Algebraic function fields, algebraic number fields and algorithms.
   http://www.math.tu-berlin.de/~hess/

Hajir, Farshid  
   California State University, San Marcos. Elliptic curves, extensions with restriced ramification, and special values of L-functions. On-line seminar, teaching information.
   http://public.csusm.edu/public/fhajir/

Harman, Glyn  
   Royal Holloway University of London. Analytic number theory: application of sieve methods, Diophantine approximation, metric number theory.
   http://www.ma.rhbnc.ac.uk/staff/gharman.html

Helenius, Ola  
   Goteborg University. Picard groups for integer group rings. Theses, preprints.
   http://www.math.chalmers.se/~olahe/

Harcos, Gergely  
   University of Texas at Austin. Automorphic forms. Publications, thesis.
   http://www.math.utexas.edu/~gharcos/thesis.pdf

Hare, Kevin G.  
   University of Waterloo. Algebraic numbers, polynomials. Publications, worksheets.
   http://www.math.uwaterloo.ca/~kghare/

Hart, William  
   Leiden University. Special Values of Dedekind's Eta Function, Elliptic Units and Generalizations for Abelian Varieties, Stark Conjectures, Elliptic Functions, Modular Equations. Publications, notes, thesis.
   http://www.math.leidenuniv.nl/~wbhart/

Helfgott, Harald A.  
   Université de Montréal. Number theory, elliptic curves, automorphic forms, combinatorics. Publications, teaching materials.
   http://www.dms.umontreal.ca/~helfgott/

Hahn, Heekyoung  
   University of Rochester. q-series, continued fraction, theta functions, partitions, modular forms, Eisenstein series, special functions; elliptic curves, coding theory and the philosophy of mathematics. List of publications.
   http://www.math.rochester.edu/people/faculty/hahn/

Holdener, Judy  
   Kenyon College. Odd perfect numbers; theoretical morphology. Teaching technology, GAP projects.
   http://www2.kenyon.edu/People/holdenerj/