My mailing address is:
Department of MathematicsBy telephone, fax or e-mail, I can be reached at:
Telephone: 814-863-0628 (office), 814-865-7527 (messages)
FAX: 814-865-3735
e-mail: katok_s@math.psu.edu
Last modified by S. Katok on September 17, 1996