Byungchul Cha's Homepage

Curriculum Vitae

Contact information

  • By foot: Trumbower 110
  • By phone: 484-664-3920
  • By fax: 484-664-3546
  • By snail mail:
    Muhlenberg College
    2400 Chew st
    Allentown, PA 18104
  • By email :
    (my lastname, followed by my school's domain name)


I will be on sabbatical leave during Fall 2014--Spring 2015.

Short Bio

I am an associate professor in the department of mathematics and computer science, Muhlenberg College. I received Ph.D. in 2003 from Johns Hopkins University under the supervision of Victor Kolyvagin and Cristian Popescu, specializing in number theory. After teaching at Hendrix College for three years, I came to Muhlenberg College in 2007.


During my Ph.D. program, I studied Kolyvagin's Euler systems of Heegner points of elliptic curves and their applications to Shafarevich-Tate groups. More recently, I am interested in linear inependence of zeta zeros in function fields and its applications to analytic number theory. For copies of my papers and slides from recent presentations, please see my research page.

Muhlenberg Sage server

I manage the Muhlenberg Sage server. Sage is a powerful open source mathematics software system. If you want an account at the Muhlenberg Sage server, please email me.

Last updated on August 20, 2013.