van der Poorten, Alf  
   Macquarie University, ceNTRe for Number Theory Research. Continued fractions and effective diophantine approximation; diphantine equations. Papers and "Notes on Fermat's Last Theorem".
   http://www.mpce.mq.edu.au/~alf/realalf.html

Vojta, Paul  
   University of California, Berkeley. Diophantine approximation; Nevanlinna theory, especially as related to diophantine approximation; Arakelov theory. Papers and software.
   http://math.berkeley.edu/~vojta/

Venkatesh, Akshay  
   Massachusetts Institute of technology. Interests in number theory and a number of related topics. Preprints, thesis, and links to collaborator's websites.
   http://www-math.mit.edu/~akshayv/

Vallée, Brigitte  
   Université de Caen. Works focused on analysis of algorithms. Includes research papers, preprints, and related links.
   http://users.info.unicaen.fr/~brigitte/

Vaughan, Robert  
   Penn State University. Waring's problem, the Goldbach problem, the Hardy-Littlewood method, the use of "smooth" numbers, the distribution of primes, exponential sums over integer sequences, properties of the Riemann zeta-function and Dirichlet
   http://www.math.psu.edu/rvaughan/

Viada-Aehle, Evelina  
   ETH Zürich. Arithmetic of abelian varieties.
   http://www.math.ethz.ch/~viada/

Velani, Sanju  
   University of York. Number theory, ergodic theory and dynamical systems. Papers and preprints.
   http://www-users.york.ac.uk/~slv3/

Veys, Wim  
   University of Leuven. Algebraic geometry, singularity theory, applications in number theory. Papers and preprints.
   http://www.wis.kuleuven.ac.be/algebra/veys.htm

Voloch, Felipe  
   University of Texas. Number theory and algebraic geometry: applications to coding theory and cryptography.
   http://rene.ma.utexas.edu:80/users/voloch/

Volpato, Michael  
   Princeton University. Arithmetic geometry.
   http://www.volpato.net/michael/

van Luijk, Ronald  
   University of California Berkeley. Algebraic geometry, algebraic number theory, arithmetic geometry and related topics. Catalogue of algebraic surfaces.
   http://math.berkeley.edu/~rmluijk/

Väänänen, Keijo  
   University of Oulu. Diophantine approximations and transcendence; error-correcting codes.
   http://cc.oulu.fi/~kvaanane/index.htm

Vaserstein, Leonid N.  
   Penn State University. Classical groups over rings and algebraic K-theory; Waring's problem, Diophantine equations, cubic surfaces. Publications.
   http://www.math.psu.edu/vstein/

Vatsal, Vinayak  
   University of British Columbia. Arithmetic of elliptic curves, L-functions. Papers and preprints.
   http://www.math.ubc.ca/~vatsal/

Villegas, Fernando Rodriguez  
   University of Texas at Austin. Special values of L-series (in particular, those related to the conjectures of Birch/Swinnerton-Dyer and Bloch/Beilinson), the arithmetic of elliptic curves and modular forms.
   http://www.ma.utexas.edu/users/villegas/

Vsemirnov, Maxim  
   Sidney Sussex College, Cambridge (on leave from Steklov Institute of Mathematics, St. Petersburg). Diophantine equations, Hilbert's Tenth Problem; linear groups.
   http://logic.pdmi.ras.ru/~vsemir/

Vercauteren, Frederik  
   University of Bristol. Algorithmic number theory and computational algebraic geometry; applications to cryptography.
   http://www.cs.bris.ac.uk/%7Efrederik/index.html

Virdol, Cristian  
   University of California Los Angeles. Modular curves, L-functions.
   http://www.math.ucla.edu/~cvirdol/

van der Straten, Didier  
   Prime number theory.
   http://www.geocities.com/dhvanderstraten/index.html

Voight, John  
   University of California, Berkeley. Quadratic forms, perfect numbers.
   http://math.berkeley.edu/~jvoight/

Verrill, Helena A.  
   Universitaet Essen. Arithmetic algebraic geometry. Fundamental domain drawer and Magma code.
   http://hverrill.net/

Vélez, William Yslas  
   University of Arizona. Algebraic and elementary number theory; Group theory; Field theory; Algebraic coding theory; Communication theory; Signal processing. Preprints and articles on educational issues.
   http://math.arizona.edu/~velez/

Vazzana, Tony  
   Truman State University. Contact information and teaching schedule.
   http://www2.truman.edu/~tvazzana/

Viola, Carlo  
   Università di Pisa. Contact information.
   http://www.dm.unipi.it/pages/viola/public_html/

Vestal, Donald L.  
   Missouri Western. Contact, teaching information.
   http://www.mwsc.edu/csmp/faculty/VestalDonald.htm

Venkov, Boris  
   Laboratory of Algebra and Number Theory, Petersburg Department of Steklov Institute of Mathematics. Contact information.
   http://www.pdmi.ras.ru/staff/bvenkov.html

Voelklein, Helmut  
   University of Florida, Gainesville. Galois theory. Books, papers, software.
   http://www.math.ufl.edu/~helmut/

Vajaitu, Marian  
   Romanian Academy of Sciences. Algebraic number theory, analytic number theory, class field theory and theory of algebraic functions.
   http://www.imar.ro/~mvajaitu/

Venjakob, Otmar  
   Universität Heidelberg. Iwasawa theory of p-adic Lie extensions; arithmetic of elliptic curves, Selmer groups of abelian varieties, structure of profinite (or pro-p) groups. Publications.
   http://www.mathi.uni-heidelberg.de/~wingberg/agwingberg/venjakob.html

Vallentin, Frank  
   Hebrew University of Jerusalem. Geometry of numbers; computational algebraic number theory.
   http://www-m10.ma.tum.de/~vallenti/

van Frankenhuysen, Machiel  
   Utah Valley State College. Hyperbolic spaces and the ABC conjecture.
   http://research.uvsc.edu/machiel/

van de Woestijne, Christiaan  
   Mathematisch Instituut, Leiden. Algorithmic theory of quadratic forms. Publications, thesis.
   http://www.math.leidenuniv.nl/~cvdwoest/