Past Events

Friday, September 12, 2025

• Computational Mathematics and Scientific Computing Seminar

  Stability of time discretizations for semi-discrete high order schemes for time-dependent PDEs

  Warren Weaver Hall, Room TBA,
  Sept. 12, 2025, 10AM
  Chi-Wang Shu, Brown University

Thursday, June 12, 2025

• Theory Seminar

  Positive random walks and positive-semidefinite random matrices

  Warren Weaver Hall, Room TBA,
  June 12, 2025, 11AM
  Joel Tropp, Caltech

Friday, May 9, 2025

Thursday, May 8, 2025

• Theory Seminar

  How to Appease a Voter Majority

  Warren Weaver Hall, Room TBA,
  May 08, 2025, 11AM
  Prasanna Ramakrishnan, Stanford

Wednesday, May 7, 2025

• Dynamical Systems Seminar

  Special Joint Seminar Analysis and Dynamical Systems Seminar: On some Impact-like Hamiltonian systems

  Warren Weaver Hall, Room TBA,
  May 07, 2025, 1:30PM
  Vered Rom-Kedar, Weizmann Institute, Israel

Friday, May 2, 2025

• Prizes & Fellowships Ceremony

  Warren Weaver Hall, Room TBA,
  May 02, 2025, 1:30PM

• Computational Mathematics and Scientific Computing Seminar

  A modern take on adaptive learning rates

  Warren Weaver Hall, Room TBA,
  May 02, 2025, 10AM
  Aaron Defazio, Meta

  I will dive into the theory of adaptive learning rates for non-smooth convex optimization, decomposing the problem into two parts: a) estimation of the key problem unknown parameters b) Understanding when and why learning rates should be decreased. Recent developments in (a) have led to new methods that estimate the distance-to-solution, having both excellent theoretical and practical properties. For (b) we view decreasing rates through the lens of last-iterate convergence, a viewpoint that explains many practical observations that were not previously well explained, and leds to new any-time optimization methods.

Thursday, May 1, 2025

• Joint Number Theory Seminar

  TBA

  Warren Weaver Hall, Room TBA,
  May 01, 2025, 5PM
  Naomi Sweeting, Princeton University

• Theory Seminar

  A new information complexity measure for streaming algorithms

  Warren Weaver Hall, Room TBA,
  May 01, 2025, 11AM
  Sumegha Garg, Rutgers

Friday, April 25, 2025

• Retirement Celebration in Honor of S.R. Srinivasa 'Raghu' Varadhan

  Warren Weaver Hall, Room TBA,
  April 25, 2025, 2:30PM
  George Papanicolaou and Gerard Ben Arous

  The Courant Institute will hold a special celebration in honor of S.R. Srinvasa Varadhan, Frank Jay Gould Professor of Science & Mathematics, who will retire at the end of this academic year. 

Special Events

• Special Events Calendar
• Courant Lectures

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