Lubos Thoma
  Zeev Nehari Visiting Assistant Professor


  Department of Mathematical Sciences
  Wean Hall 6124
  Carnegie Mellon University
  Pittsburgh, PA 15213

  tel: 412.268.8419 (office);   412.268.2545 (department, messages)
  fax: 412.268.6380
  email: thoma@qwes.math.cmu.edu, thoma@andrew.cmu.edu


  Partially supported by an NSF research grant and by a U.S.-Brazil cooperative grant.