This page represents an abbreviated home page, highlighting some elements that seem closely related to my teaching at Sonoma State University. My home page at Grinnell College provides considerably more information..

Courses at Sonoma State University

A complete list of courses taught since Spring 1997 is available at my [complete] home page.

Spring 2026:	Computer Science 242.001: Discrete Structures for Computer Science (Course/Web Site Under Development)
	Computer Science 454.001: Theory of Computation (Course/Web Site Under Development)
Spring 2025:	Computer Science 415.001: Algorithm Analysis
Spring 2024:	Computer Science 415.001: Algorithm Analysis
	Computer Science 454.001: Theory of Computation
Spring 2023:	Computer Science 415.001: Algorithm Analysis
Spring 2023:	Computer Science 415.001: Algorithm Analysis
Fall 2022:	Computer Science 415.001: Algorithm Analysis
Spring 2022:	Computer Science 115.005/006: Programming I
	Computer Science 415.002: Algorithm Analysis
Fall 2021:	Computer Science 242.002: Discrete Structures for Computer Science

Education

M.S. in computer science, University of Iowa, 1979.
Ph.D. in mathematics, Massachusetts Institute of Technology, 1973.
A.B. magna cum laude with highest honors in mathematics, Williams College, 1969.

Teaching Experience

• Lecturer in Computer Science / Faculty Volunteer, Department of Computer of Science, Sonoma State University, 2021-present

• Grinnell College, Grinnell, Iowa

  • Professor Emeritus of Computer Science andMathematics 2021-present
  • Samuel R. and Marie-Louise Rosenthal Professor of Natural Science and Mathematics, 2001-2021
  • Professor of Computer Science, 2006-2021
  •   Chair, Department of Computer Science, 2006-2010, 2012-2014
  • Professor of Mathematics and Computer Science, 1990-2006
  •   Chair, Department of Mathematics and Computer Science, 1990-1991 Professor of Mathematics, 1987-1990 Associate Professor of Mathematics 1980-1987
  •   Chair, Department of Mathematics, 1981-1983 Assistant Professor of Mathematics, 1974-1980

• Visiting Professor of Computer Science

  • University of the South, "Easter" Semester, 2017 Williams College, Fall Semester, 2017
  • University of Puget Sound, Spring Semester, 2020
  • UNITEC Institute of Technology, Auckland, New Zealand, April-May, 2003

• Class of 1959 Distinguished Scholar Chair in the Computer Science Department

  • Willamette University, Spring Semester, 2019

• Senior Lecturer, Department of Computer Sciences

  • 1988-1989, Fall 1995; Summers 1990, 1991, 1992, 1993, 1996 University of Texas at Austin

• Lecturer, Department of Mathematics, M.I.T., 1973-74

created 21 August 2021 revised 4 November 2023 revised 1 September 2025 photograph by Grinnell College Office of Public Relations
For more information, please contact me at (walker@cs.grinnell.edu)