Daniel Keliher

Ph.D Candidate

Tufts University

Dept. of Mathematics

Bromfield-Pearson 207


I am a fourth-year graduate student in mathematics at Tufts University working under the supervision of Robert Lemke Oliver. Broadly speaking, my interests include number theory, arithmetic statistics, and arithmetic geometry. I graduated from Brown in 2017 and earned my Master's from Tufts in 2019. I can be reached at firstname.lastname@tufts.edu.

In the spring semester of 2021, I was an adjunct faculty member at Salve Regina University.

Here is my CV.


I am mainly interested in number theory and arithmetic statistics. Here are my papers/preprints:

  1. Comparing the Density of D4 and S4 Extensions of Number Fields, with Matt Friedrichsen (arXiv, accepted by Proc. AMS)

  2. Enumerating D4 Quartics and a Galois Group Bias Over Function Fields (arXiv, submitted)

  3. Mertens' Theorem for Chebotarev Sets, with Santiago Arango-Piñeros and Chris Keyes (arXiv, submitted)

I have also worked in computational genomics. The papers and abstracts below are the result of collaboration with Eli Van Allen, David Liu, and others at the Dana-Farber Cancer Insitute. My contributions primarily dealt with applications of non-negative matrix factorization to problems about mutational signatures. Check out related work from the Van Allen Lab. Though this is not my current research focus, I am very interested in revisiting some of these ideas with topological methods. Research from this work can be found at PubMed or on Google Scholar. Here are the highlights:

  1. D.N. Rodrigues, P. Rescigno, D. Liu, et al.Immunogenomic analyses associate immunological alterations with mismatch repair defects in prostate cancer. The Journal of Clinical Oncology (2019)

  2. D. Miao, P. Rescigno, D. Liu, et al. Genomic correlates of response to immune checkpoint blockade in microsatellite-stable solid tumors. Nature Genetics (2018)

  3. D. Liu, P. Abbosh, D. Keliher, et al. Mutational patterns in chemotherapy resistant muscle-invasive bladder cancer. Nature Communications (2017)


Current Teaching, Summer 2021

  • Instructor of Record for MATH-0019: Mathematics of Social Choice. (Tufts students please see Canvas for course details.)

Past Teaching at Salve Regina:

  • Instructor of Record for MTH-171-02: Mathematics in the Social Sciences, Spring 2021

Past Teaching at Tufts:

  • TA for MATH-0063: Transition to Proofs, Spring 2021

  • TA for MATH-0165: Probability, Fall 2020

  • Instructor of Record for MATH-0021: Introductory Statistics, Spring 2020 and Summer B 2020 (syllabus)

  • TA for MATH-0061: Discrete Math, Spring 2019 and Fall 2019

  • Instructor of Record for MATH-0030: Introduction to Calculus, Summer II 2019

  • Recitation Instructor for MATH-0032: Calculus I, Fall 2019

  • Instructor for a summer session math standardized test prep course, Summer 2018

  • TA for MATH-0146: Abstract Algebra 2, Spring 2018

  • TA for MATH-0145: Abstract Algebra 1, Fall 2017

Other Stuff

I am currently on the committee organizing the Tufts University Directed Reading Program (DRP).

Since the spring of 2019, I have been organizing the Tufts Math Graduate Student Seminar.