Sean Cleary

Position

Professor, Assistant Chair

Email

scleary@ccny.cuny.edu

Office

MR 301C

Office hours

see below

Office phone

(212) 650-5122

Homepage

https://profcleary.github.io

Office Hours

• Tues, Thurs 9:45am on days when Tuesday and Thursday classes meet. If students have questions after class, I remain in the NAC 1/203 classroom until those are addressed, and then head to Marshak 301.

Biography

Professor, The City College of New York, Department of Mathematics

Graduate Faculty, The CUNY Graduate Center, Department of Mathematics

Education:

• Ph.D., Mathematics, University of California, Los Angeles
• A.B. Mathematics and Physics, Cornell University

Research

Geometric and combinatorial group theory, spaces of trees, algorithms for trees.

MathSci reviews of some research publications, subscription required (CUNY has one)

Some arXiv preprints of research publications.

CCNY Faculty Profile page

Classes

For Fall 2026, Sean Cleary is teaching:

• Math 21300-KL: Calculus III with Planar Vector Analysis; TuTh 8:00AM-9:40AM in NAC 1/203

Past teaching