Deirdre Smeltzer

Deirdre Smeltzer

Office Phone: (540) 432-4141


Main Campus, Harrisonburg

Office Location: CC 318

VP & Undergrad Academic Dean

Undergraduate Academic Dean's Office

Deirdre Longacher Smeltzer, Vice President and Undergraduate Academic Dean, began working at EMU in 1998. Prior to 1998, she spent four years as an assistant professor in the Mathematics Department at the University of St. Thomas in St. Paul, MN. Deirdre is an alumna of EMU, where she majored in mathematics, with a Bible minor. She earned an M.S. and a Ph.D. in mathematics from the University of Virginia; Deirdre’s graduate research was in the area of algebraic coding theory. Recent scholarly pursuits have included exploring other branches of combinatorics, co-authoring the book Methods for Euclidean Geometry, and (currently) writing of a second textbook on discrete mathematics. In 2012-13, Deirdre served as the Interim Director of Cross-cultural Programs at EMU. In July of 2013, she moved into the role of Vice President and Undergraduate Academic Dean. In the fall semester of 2013, Deirdre co-led a cross-cultural program to China. Deirdre is married to Sherwyn Smeltzer, has two daughters and a son-in-law, and enjoys reading, cooking, exercise, and travel.


B.A., Eastern Mennonite University, 1987
M.S., Mathematics, University of Virginia, 1990
Ph.D., Mathematics, University of Virginia, 1994


  • Mutually Tangent Spheres in n-Space, with Owen Byer, Mathematics Magazine, April, 2015.
  • A 3-D Analog of Steiner’s Porism, with Owen Byer, Mathematics Magazine, April, 2014.
  • Exploring Loci in Geometry, with Owen D. Byer, Proceedings of the Sixteenth Conference of the ACMS (2007), pp 114-140.
  • Edge bounds in non-hamiltonian k-connected graphs, with Owen D. Byer, Discrete Mathematics, Volume 307 (2007), pp 1572-1579.
  • A Guide to Mathematics Competency, with Owen D. Byer, for use in EMU Foundations of Math course, 2007.
  • Exponential Numbers of Inequivalent Difference Sets in Z2s+1xZ2s+1, with James A. Davis, Journal of Combinatorial Designs, Volume 11 (2003), pp 249-259.
  • Properties of Codes from Difference Sets in 2-Groups, Designs, Codes, and Cryptography, Volume 16 (1999), pp 291-306.

Scholarly Presentations and Abstracts

(January 2012-present only)

  • A Proof of Ptolemy’s Theorem, MAA MathFest, Portland, OR, August 9, 2014.
  • Building a Successful Required Cross-cultural Program, with Jason Good, NAFSA Region VIII meeting, Alexandria, VA, November 17, 2012.
  • Using Methods for Euclidean Geometry in the Classroom, with Owen Byer, MAA-AMS joint national meeting, Boston, MA, January 6, 2012.

Church, Community and Professional Service

(Selected Activities)

  • Parent-Teacher Fellowship Secretary, Eastern Mennonite School, July 2011-present.
  • Co-facilitator of professional development session for Harrisonburg City middle school math teachers, with Dr. Edwin O’Shea and Dr. Elizabeth Arnold, October 13, 2011.
  • College for a Day presentation, Red Hat, Blue Hat: What Color is Your Hat?, with Laura Hershey, June 3, 2011.
  • Worship leader, Park View Mennonite church, 2011, 2012, 2013.
  • Teacher for college-age Sunday School class, Park View Mennonite Church, January 2011-January 2013.
  • Minutes taker, Friendly City Food Co-op Board, December 2009-September 2011.

Professional Memberships

  • Association of Christians in the Mathematical Sciences
  • Mathematical Association of America

Professional Conferences Attended

(January 2012-present only)

  • MAA MathFest, Portland, OR, August 7-9, 2014.
  • CCCU Forum: Engaged Community, Los Angeles, CA, February 12-14, 2014.
  • National Joint Meetings of the MAA and the AMS, Washington, DC, January 16-18, 2014.
  • Council of Independent Colleges 2013 Institute for Chief Academic and Chief Student Affairs Officers, Pittsburgh, PA, November 2-5, 2013.
  • MAA-PREP workshop: Math for a Sustainable Future, Washington, DC, March 14-17, 2013.
  • NAFSA Region VIII Conference, Alexandria, VA, November 15-17, 2012.
  • Virginia International Educators Fall Conference, Charlottesville, VA, October 19, 2012.
  • Council of Independent Colleges Workshop for Department and Division Chairs, Charleston, SC, May 22-24, 2012.
  • National Joint Meeting of the MAA and the AMS, Boston, MA, January 4-7, 2012.