**Wednesday, February 26, 2020
John Urschel, Ph.D. Candidate, MIT
Title:** Iterative Methods for Matrices and Polynomial Optimization Problems

3:00-4:30 pm, Mendel 102

**Tuesday, December 10, 2019
Dr. Suzanne Thornton, Swarthmore College
Title:** Computational Statistical Inference for Complex Data

2:30-4:00 pm, Mendel G92

**Friday, November 15, 2019
Dr. Holley Friedlander, Dickinson College
Title:** Arithmetic of Apollonian circle packings

2:30-4:00 pm, Mendel G92

**Friday, November 1, 2019
Dr. David Richeson, Dickinson College
Title:** Tales of Impossibility

2:30-4:00 pm, Mendel 102

**Friday, October 4, 2019
Dr. Elizabeth Drellich, Haverford College**

**Title:**Folding words around trees: Models inspired by RNA.

2:45-4:15pm, Mendel G92