Math Faculty

Photo of Craig M. Johnson, Ph.D.

Craig M. Johnson, Ph.D.

Professor of Mathematics
Center for Natural and Health Sciences building, Room 319
(570) 348-6291


B.S. in Mathematics: University of Illinois
M.S., Ph.D. in Mathematics: Purdue University

Research Area

Topology; Connections of Mathematics to Music

Office Hours

Spring 2020 (January 13, 2020, to May 8, 2020) Monday, Wednesday, and Friday from 3 PM to 4 PM, Tuesday and Thursday from 12 PM to 1 PM, or by appointment. 

Please email Dr. Johnson to make an appointment.


  • Free actions on closed surfaces by finite groups
  • Obstructions to embeddings of simplicial complexes into manifolds
  • Connections of mathematics to music theory
  • Use of technology in teaching