Eirini Poimenidou

Professor of Mathematics


Phone Number

Email Address



Heiser 107




Office or Division

Area of Concentration


Ph.D. in Mathematics, Mathematics Research Institute, University of Warwick, UK
M.S. in Mathematics, Mathematics Research Institute, University of Warwick, UK
B.S. in Mathematics, University of Reading, UK


Professor Poimenidou is an algebraist with broad interests in Algebra, Number Theory, Cryptography, Graph Theory and Combinatorics. Her research interests are in the theory Characters of finite groups and she has published several papers in this field some with student co-authors. Professor Poimenidou is a strong believer in the power of mathematics for professional as well as artistic pursuits. She wants to encourage all students to take a math class at New College. Pursuing research projects with students is one of her favorite activities at New College. Her “Introduction to Proofs” tutorial, offered almost every semester, has trained many generations of students in the art of proof writing and has prepared them for higher level classes. Her favorite classes to teach are The Abstract Algebra I and II sequence, Linear Algebra, Number Theory and Cryptography, Graph Theory, Galois Theory and other advanced classes with an algebraic flavor.

Recent Courses

Abstract Algebra I and II
Calculus with Theory I and II
Calculus I and II
Galois Theory
Linear Algebra
Advanced Linear Algebra
Number Theory with Applications to Cryptography

Select Publications

Sammuel Herman* & Eirini Poimenidou, “Orbits of Hamiltonian Paths and Cycles in complete graphs“, Journal of Integer Sequences, Vol. 23 (2020), Article 20.7.6

Daniel McGinnis* & Eirini Poimenidou, “A method to construct 1-rotational factorizations of complete graphs and solutions to the Oberwolfach problem“, Journal of Combinatorial Designs, Vol 27, Issue 2, February 2019.

Erin Craig* & Eirini Poimenidou “An Extension of Rule 90 for One-Dimensional Cellular Automata over Non-Abelian Group Alphabets” chapter in “A Celebration of the EDGE Program’s Impact on the Mathematics Community and Beyond” (Association for Women in Mathematics Series), Springer, September 2019

Eirini Poimenidou & Ken Johnson “A formal power series attached to a class function on a group and its application to the characterization of characters“, Mathematical Proceedings of the Cambridge Philosophical Society, Vol. 155, Issue 3. (2013).

Eirini Poimenidou & Michael Bardzell “Binomial Coefficients Modulo a Prime: A Visualization Approach to Undergraduate Research”, PRIMUS, 21(3), pp.238-251, 2011.

Eirini Poimenidou & Michael Bardzell & Katelin Childers*, Erin Craig*, Israa Taha *, “A p-adic Approach to Binomial Identities”, The Pi Mu Epsilon Journal,Volume 13, Number 3, pp 133-142, 2010.

Eirini Poimenidou & Michael Bardzell “The Pascgalois Summer Undergraduate Research Retreats” FOCUS, Mathematical Association of America, May/June 2007, p18.

Eirini Poimenidou & Homer Wolfe* “Total Characters and Chebyshev Polynomials”, International Journal of Mathematics and Mathematical Sciences, Volume 2003, No. 38, 2447-2453.

Eirini Poimenidou & Ken Johnson “Group Characters, Permutation Actions and Sharpness”, European Journal of Combinatorics, 24, 2003, No. 2 173-182.

E. Poimenidou & Amy Cottrell*, “Total Characters of Dihedral Groups and Sharpness”, Missouri Journal of Mathematical Sciences, Vol. 12, No. 1, 2000.

K.W. Johnson & E. Poimenidou, “Generalized classes in groups and association schemes: Duals of results on Characters and Sharpness, European Journal of Combinatorics, 1999, (20) pp. 87-92.

K.W. Johnson & E. Poimenidou, “Group characters and π –sharpness”, Groups St. Andrews 1997 in Bath, London Mathematical Society Lecture Series 260, V II, Cambridge University Press,1999, pp. 429-435.


(*) indicates student co-author