Coleman, Mark
- UMIST. Analytic number theory with special interest in the "geometric" distribution of ideals in number fields.
- http://www.maths.manchester.ac.uk/~mdc/

Chinta, Gautam
- City College of New York. Number theory, automorphic forms, L-functions.
- http://www.sci.ccny.cuny.edu/~chinta/

Tretkoff, Paula Cohen
- Texas A+M University. Number theory and geometry, classical and non-commutative.
- http://www.math.tamu.edu/~ptretkoff/

Conrey, Brian
- American Institute of Mathematics / Oklahoma State University / University of Bristol. Analytic number theory, especially the analytic theory of L-functions. Publications, L-function resources.
- http://www.aimath.org/~conrey/

Chang, Sungkong
- Armstrong Atlantic State University. Arithmetic of elliptic curves; arithmetic of Jacobian varieties/abelian varieties; modular curves; theory of complex multiplication; algebraic number theory. Thesis, publications.
- http://www.math.armstrong.edu/faculty/chang/math/math.html

Cogdell, James
- Ohio State University. Analytic number theory, L-functions. Preprints.
- http://www.math.ohio-state.edu/~cogdell/

Caldwell, Chris
- University of Tennessee at Martin. Number theory, especially primality conditions. Prime pages, links and other resources.
- http://www.utm.edu/staff/caldwell/

Chakraborty, Kalyan
- Harish-Chandra Research Institute. Contact information.
- http://www.mri.ernet.in/math/kalyan

Culp-Ressler, Wendell
- Franklin and Marshall College. Analytic number theory: Automorphic forms and automorphic integrals, Hecke correspondence, period functions, Dirichlet series, binary quadratic forms, continued fractions.
- http://server1.fandm.edu/people/w_ressler/

Cornut, Christophe
- Institut de Mathématiques de Jussieu, Université Paris 7 Denis Diderot. Arithmetic of elliptic curves; Complex multiplication, Heegner and CM points; Kolyvagin conjectures and congruences.
- http://www.institut.math.jussieu.fr/~cornut/

Chudnovsky Brothers
- "The Mountains of PI", a New Yorker article by Richard Preston.
- http://wadanet.com/hasegawa/chud.htm

Cobelli, Cristian
- Institute of Mathematics of the Romanian Academy. Analytic number theory. Publications.
- http://www.imar.ro/~ccobeli/

Chahal, Jasbir S.
- Brigham Young University. Contact information.
- http://www.math.byu.edu/~jasbir/

Conrad, Brian
- University of Michigan. Contact and teaching information.
- http://www.math.lsa.umich.edu/~bdconrad/

Cutter, Pamela
- Kalamazoo College. Publications.
- http://max.cs.kzoo.edu/~pcutter/

Coates, John H.
- University of Cambridge. Interests in number theory, arithmetical algebraic geometry, and Iwasawa theory.
- http://www.dpmms.cam.ac.uk/site2002/People/coates_jh.html

Chan, Tsz Ho
- Case Western Reserve University. Analytic number theory: distribution of primes and pair correlation of zeros of the Riemann zeta function; elementary and combinatorial number theory.
- http://home.cwru.edu/~txc50/

Croot, Ernest
- Georgia Institute of Technology. Combinatorial number theory.
- http://www.math.gatech.edu/~ecroot/

Choi, Kwok Kwong Stephen
- Simon Fraser University. Diophantine analysis.
- http://www.cecm.sfu.ca/~choi/

Coleman, Robert
- University of California at Berkeley. Arithmetic of modular forms. Preprints and lecture notes.
- http://math.berkeley.edu/~coleman/

Conrad, Keith
- University of Connecticut. Analytic and algebraic number theory. Research and expository papers.
- http://www.math.uconn.edu/~kconrad/

Chan, Heng Huat
- National University of Singapore. Analytic number theory, basic hypergeometric series, elliptic functions, modular forms and modular equations, applications of modular equations, Ramanujan.
- http://www.math.nus.edu.sg/~chanhh/

Chen, William
- Macquarie University. The theory of irregularities of point distribution.
- http://www.maths.mq.edu.au/~wchen/

Choie, YoungJu
- Pohang University of Science and Technology. Arithmetic of modular forms. List of publications, Korean/English.
- http://www.postech.ac.kr/department/math/people/choieyoungju.htm

Chinburg, Ted
- University of Pennsylvania. Number theory, arithmetic geometry.
- http://www.math.upenn.edu/~ted/

Costello, Patrick
- Eastern Kentucky University. Computational number theory including amicable numbers, Smith numbers, factorization, and primality testing. Quadratic forms over the rationals and quadratic number fields.
- http://www.math.eku.edu/pjcostello/

Cusick, Thomas
- State University of New York at Buffalo. Cryptography, number theory, Diophantine approximation.
- http://www.math.buffalo.edu/Cusick_Thomas.html

Cornelissen, Gunther
- University of Utrecht. Arithmetical algebraic geometry, in particular global function fields (moduli-problems, automorphic forms); non-archimedean uniformization, group actions in positive characteristic; diophantine sets.
- http://www.math.uu.nl/people/cornelissen/

Conrad, Marc
- University of Luton. Computational number theory, SIMATH.
- http://www.perisic.com/marc/

Cornacchia, Pietro
- University of Pisa. Algebraic number theory: ideal class groups for cyclotomic fields, and K-theory of the rings of integers of an abelian number field.
- http://www.dm.unipi.it/pages/cornac/public_html/cornacchia.html

Cooper, Shaun
- Massey University. Special functions, number theory, combinatorics.
- http://iims.massey.ac.nz/people/s.cooper/

Coombes, Kevin
- University of Texas. Arithmetic algebraic geometry, algebraic K-theory.
- http://odin.mdacc.tmc.edu/~krc/

Coghlan, Francis
- University of Manchester. Diophantine equations, elliptic curves.
- http://www.maths.man.ac.uk/DeptWeb/Homepages/fbc/

Chi, Wen-Chen
- National Taiwan Normal University. Number theory, Arithmetic algebraic geometry.
- http://math.ntnu.edu.tw/~wchi/EnglishPage.html

Chen, Imin
- Simon Fraser University. elliptic curves, Galois representations, automorphic forms.
- http://www.math.sfu.ca/~ichen/

Cochrane, Todd
- Kansas State University. Exponential sums.
- http://www.math.ksu.edu/~cochrane/

Charles, Denis Xavier
- University of Wisconsin-Madison. Computational number theory.
- http://www.cs.wisc.edu/~cdx/

Chai, Ching-Li
- University of Pennsylvania. Arithmetic algebraic geometry.
- http://www.math.upenn.edu/~chai/

Cosgrave, John
- St. Patrick's College, Dublin. Computational number theory, primes and factoring.
- http://www.spd.dcu.ie/johnbcos/

Chang, Mu-Ling
- University of Wisconsin-Platteville. Algebraic number theory and algebra.
- http://www.uwplatt.edu/~changm/

Chapman, Robin
- University of Exeter. Number theory, algebra, combinatorics and problem solving. Papers, lecture notes and survey articles.
- http://www.maths.ex.ac.uk/~rjc/rjc.html

Childs, Lindsay
- SUNY Albany. Algebra and number theory, especially relative Galois module theory.
- http://math.albany.edu:8000/~lc802/

Cohen, Stephen
- University of Glasgow. Number theory, algebea, combinatorics.
- http://www.maths.gla.ac.uk/people/?id=32

Consani, Katia
- University of Toronto. Arithmetic geometry, number theory, non-commutative geometry.
- http://www.math.toronto.edu/kc/

Connell, Ian
- McGill University. Arithmetic of elliptic curves. Links to APECS software and Elliptic Curve Handbook.
- http://www.math.mcgill.ca/connell/

Clarke, Francis
- University of Wales Swansea. K-theory, Bernoulli numbers, Stirling numbers.
- http://www-maths.swan.ac.uk/staff/fwc/

Cardon, David
- Brigham Young University, Provo, Utah. Contains curriculum vitae with a list of publications and conferences attented.
- http://www.math.byu.edu/~cardon/

Campbell, Garikai
- Swarthmore College. List of links to selected papers, lectures, and professional mathematics organizations.
- http://www.swarthmore.edu/NatSci/gcampbe1/

Calkin, Neil
- Associate professor at Clemson University, with interests in combinatorial and probabilistic methods, particularly in number theory.
- http://www.math.clemson.edu/faculty/Calkin/

Calegari, Frank
- Harvard University. Includes publications, work in progress, and mathematical links.
- http://abel.math.harvard.edu/~fcale/

Cai, Jin-Yi
- University of Wisconsin, Madison. Contains curriculum vitae and recent research papers in postscript and pdf format.
- http://www.cs.wisc.edu/~jyc/

Casselman, Bill
- Automorphic forms, the representation theory of Coxeter groups and reductive groups over non-Archimedian local fields.
- http://www.math.ubc.ca/~cass/research.html

Cremona, John
- University of Nottingham. Number theory, elliptic curves. Tables and software.
- http://www.maths.nott.ac.uk/personal/jec/

Cojocaru, Alina Carmen
- Princeton. Arithmetic geometry with techniques from analytic number theory. Preprints and other links.
- http://www.math.princeton.edu/~cojocaru/

Cohen, Henri
- Mathematics professor at the University Bordeaux I, France. Modular forms and computational number theory. Publications, software.
- http://www.math.u-bordeaux.fr/~cohen/