Sarah C. Koch

Department of Mathematics
University of Michigan
East Hall, 530 Church Street
Ann Arbor, Michigan 48109

office: 3855 East Hall
email: kochsc at


I am an Associate Professor in the math department at the University of Michigan.


I work primarily in complex analysis, Teichmüller theory, and complex dynamics (in one and several variables).
Here is my CV, and here are my papers.


I am teaching Math 296 in Winter 2020.
I am a faculty advisor for Math Club. (Stop by! It's on Thursdays at 4pm in the Nesbitt room.)
I help organize Bagel Sundays in the Math Department - stop by on Sundays at 1pm in the Math Atrium!
I am also a faculty advisor for FEMMES, and I like to help out with Wolverine Pathways.
I also organize Math Mondays in Ypsi, where a bunch of us do math with students at Ypsi Middle School on Monday mornings. Please email me if you are interested in joining us!

Upcoming talks and travel:

Stephen, Yunus, and I started a Math Corps site at U(M) last Summer! Check out our poster!
I am visiting the Math Department at Harvard University in January 2020.
I am speaking at the Arithmetic Dynamics special session and at the Project NExT special session on outreach at the JMM in Denver in January 2020.
I am giving at talk in the dynamics seminar at Stony Brook in March 2020.
I am giving a colloquium talk at the University of Virginia in March 2020.
I am giving a colloquium talk at Carleton College in March 2020.
I am giving a talk at the Graduate Student Topology and Geometry Conference at Indiana University in April 2020.
I am giving a colloquium talk at the University of Wisconsin in April 2020.
I am speaking at the Cornell Topology Festival in May 2020.
I am visiting Xavier Buff in Toulouse in May 2020.
I am attending this fabulous conference in May 2020!
Together with Noelle Sawyer and Becca Winarski, I am organizing a Dynamics Students Workshop at U(M) in June 2020, cousin of the Topology Students Workshop.
I am giving the Dresden Lectures at Swarthmore College in 2020-2021.
I am giving a colloquium talk at Dartmouth College in October 2019.
I am organizing a semester in Complex Dynamics at MSRI in Spring 2022.


this week
Complex Analysis, Dynamics, and Geometry Seminar
Geometry Seminar
RTG Working Group
Topology Seminar
accouplements de polynômes, by Arnaud Chéritat.
one of my favorite stories
my favorite solution to (72) from this file.
splitting the bill
Resources for 295ers