Ruth Davidson

I recently finished my Ph.D. in the Math department at North Carolina State University in Raleigh, NC. This fall I will join the Math and CS departments at University of Illinois Urbana-Champaign as an NSF postdoctoral fellow (DMS 1401591) working with Tandy Warnow.

Contact: redavids at ncsu dot edu



My areas of research interest are mathematical phylogenetics and applied geometric combinatorics.

My Ph.D. advisors are Patricia Hersh and Seth Sullivant.


Towards a shellability proof of a hypergeometric identity. In preparation.

With Seth Sullivant: Distance-based phylogenetic methods around a polytomy. To appear in IEEE/ACM Transactions on Computational Biology and Bioinformatics. Associated Software.

With Patricia Hersh: "A lexicographic shellability characterization of geometric lattices" Journal of Combinatorial Theory, Series A 123 (2014), no. 1: 8-13.

With Seth Sullivant: "Polyhedral Combinatorics of UPGMA Cones" Advances in Applied Math 50 (2013), no. 2, 327-338. Supplementary Materials.




Upcoming/Ongoing Activities


AS2014 at IIT

2014 PhyloLab conference at UT-Austin

Stanley@70 at MIT

Evolution 2014 in Raleigh, NC

Special Session on Algebraic Statistics, Fall AMS Sectional at SFSU




Some Past Activities

AMS Special Session on Mathematical Biology at Temple University, October 12-13, 2013

SIAM AG13 (Applied Algebraic Geometry), Fort Collins, CO, August 1-4, 2013

Evolution 2013 in Snowbird, Utah, June 21-26, 2013

IAS 2013 Program for Women and Mathematics, Princeton, NJ, May 13-24, 2013

Southeastern Sectional Meeting of the AMS in Oxford, MS, March 1-3 2013

Symposium and Workshop on New Methods for Phylogenetics and Metagenomics, February 16-17 2013

Special Session on Algebraic and Topological Combinatorics AMS Southeastern Sectional October 13-14 2012

AWM Poster Session/SIAM Annual Meeting July 9-13 2012

Algebraic Statistics in the Alleghenies June 9-15 2012

SIAM AG11 Conference on Applied Algebraic Geometry, October 6-9 2011

Commutative Algebra Summer School at MSRI June 6-17 2011



I received my B.S. in Mathematics at the University of Washington, Seattle, where I wrote an undergraduate thesis. My undergraduate advisor was Sara Billey.

NCSU AWM Chapter

NCSU Algebra and Combinatorics Seminar

NCSU Symbolic Computation and Tensor Seminar

NCSU Phylogenetics and Evolutionary Biology Seminar

Graduate Algebra Seminar