Member Seminar
2026-10-09 12:00 - 13:00, 2026-10-16 12:00 - 13:00, 2026-10-23 12:00 - 13:00, 2026-10-30 12:00 - 13:00, 2026-11-06 12:00 - 13:00 (America/New_York) | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States

AI for the Working Mathematician
2026-10-09 16:30 - 17:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
AI for the Working Mathematician
Speaker: Jordan Ellenberg, University of Wisconsin-Madison
Title: TBA

Geometry and Quantum Theory Seminar
2026-10-13 16:15 - 18:00, 2026-10-20 16:15 - 18:00, 2026-10-27 16:15 - 18:00, 2026-11-03 16:15 - 18:00 | Science Center 507, 1 Oxford Street, Cambridge, 02138
Joint Math/CMSA Geometry and Quantum Theory Seminar

New Technologies in Mathematics Seminar
2026-10-14 14:00 - 15:00, 2026-10-21 14:00 - 15:00, 2026-10-28 14:00 - 15:00, 2026-11-04 14:00 - 15:00 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
New Technologies in Mathematics Seminar
Speaker: tba

AI for the Working Mathematician
2026-10-14 16:30 - 17:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
AI for the Working Mathematician
Speaker: Lauren Williams, Harvard
Title: First Proof Batch 3: Mathematicians putting AI to the test

Geometry and Mathematical Physics Seminar
2026-10-15 16:30 - 17:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
Geometry and Mathematical Physics Seminar
Speaker: Spiro Karigiannis, University of Waterloo

Math Science Lectures in Honor of Raoul Bott | Daniel Litt, U Toronto
2026-10-19 16:00 - 17:00 | MA
Dates: October 19 & 21, 2026
Time: 4:00–5:00 pm ET
Location: Science Center Lecture Hall A and via Webinar
In-person registration
Webinar Registration
Speaker: Daniel Litt, University of Toronto & Benedict H. Gross Distinguished Visitor, Harvard Mathematics Department
Lecture 1: The arithmetic of differential equations
Monday, October 19, 2026, followed by a reception in the Math Dept Austine & Chilton McDonnell Common Room, 4th floor

Lecture 2: Non-abelian motives
Wednesday, October 21, 2026

Harvard Mathematics Professor Raoul Bott (1923 – 2005), was a Hungarian-American mathematician known for numerous foundational contributions to geometry in its broad sense. He is best known for his Bott periodicity theorem, the Morse–Bott functions which he used in this context, and the Borel–Bott–Weil theorem.

Colloquium
2026-10-19 16:30 - 17:30, 2026-10-26 16:30 - 17:30, 2026-11-02 16:30 - 17:30, 2026-11-09 16:30 - 17:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States

Math Science Lectures in Honor of Raoul Bott | Daniel Litt, Benedict H. Gross Distinguished Visitor, Harvard Mathematics Department
2026-10-21 16:00 - 17:00 | MA

AI for the Working Mathematician
2026-10-21 16:30 - 17:30, 2026-10-28 16:30 - 17:30, 2026-11-04 16:30 - 17:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
AI for the Working Mathematician
Speaker: TBA
Title: TBA

Geometry and Mathematical Physics Seminar
2026-10-22 16:30 - 17:30, 2026-10-29 16:30 - 17:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States

CMSA/Tsinghua Math-Science Literature Lecture: Peng Shan, Tsinghua University
2026-10-29 09:00 - 10:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
CMSA/Tsinghua Math-Science Literature Lecture
Date: Thursday, October 29, 2026
Time: 9:00 – 10:30 am ET
Location: online via Zoom Webinar

Please register to attend
Zoom Webinar registration

Speaker: Peng Shan, Tsinghua University
Title TBA

Beginning in Spring 2020, the CMSA began hosting a lecture series on literature in the mathematical sciences, with a focus on significant developments in mathematics that have influenced the discipline, and the lifetime accomplishments of significant scholars.

Geometry and Mathematical Physics Seminar
2026-11-05 16:30 - 17:30 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
Geometry and Mathematical Physics Seminar
Speaker: Ron Donagi, University of Pennsylvania

Northeast Conference on Categorical Methods
2026-11-06 09:00 - 2026-11-07 17:00 | CMSA Room G10, CMSA, 20 Garden Street, Cambridge, MA, 02138, United States
Northeast Conference on Categorical Methods
Dates: November 6–​7, 2026
Location: CMSA G10, 20 Garden St., Cambridge MA 02138

This conference is intended to bring together researchers in all areas of mathematics and mathematical physics whose work involves the use of methods from categorical algebra, abstract homotopy theory, and higher category theory. Our goal is to showcase new, exciting research and offer an avenue for researchers from the Northeast US to discuss their work and collaborate with people in this ever-growing community.

There will be time for 4 short talks by early-career mathematicians.

REGISTRATION FORM (link) Deadline: September 20, 2026
Zoom Webinar Registration

Invited Speakers

Andrew Blumberg, Columbia University
Soren Galatius, Columbia University
Tony Pantev, University of Pennsylvania
Nick Rozenblyum, University of Toronto
Tomer Schlank, University of Chicago/Harvard University
Brian Williams, Boston University
Inna Zakharevich, Cornell University

Organized by Dan Freed, Harvard Math & CMSA; Owen Gwilliam, UMass Amherst; and Lorenzo Riva, Harvard CMSA
