Tuesday, January 5
11:00 am - 12:15 pm	Chemical Physics Seminar Online Event Free Range Frequency Combs: mobilizing frequency comb laser technology from hypersonic research to atmospheric sensing Greg Rieker, Associate Professor, Mechanical Engineering, University of Colorado- Boulder,
12:00 pm - 1:00 pm	Mathematics Colloquium Online Event The geometry and topology of scalar curvature Chao Li, Department of Mathematics, Princeton University,
3:00 pm - 3:55 pm	Caltech/UCLA Joint Analysis Seminar Online Event Radon-like Transforms, Geometric Measures, and Invariant Theory Philip T. Gressman, Department of Mathematics, University of Pennsylvania,
4:00 pm - 4:55 pm	Caltech/UCLA Joint Analysis Seminar Online Event Extreme values of the argument of the zeta function Alexander Dobner, Department of Mathematics, UCLA,

Wednesday, January 6
1:30 pm - 2:30 pm	High Energy Theory Informal Seminar Online Event A violation of global symmetries from replica wormholes and the fate of black hole remnants Luca Iliesiu, Stanford University,
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event Cosmic Rays in Multiphase Gas Ellen Zweibel, W. L. Kraushaar Professor of Astronomy and Physics, University of Wisconsin-Madison,
4:00 pm - 5:45 pm	▶︎POSTPONED: Diverse Minds Seminar Online Event The Hierarchy of Knowledge in Machine Learning & Related Fields and Its Consequences Dr. Timnit Gebru, Research Scientist, Artificial Intelligence, Black in AI,

Thursday, January 7
9:00 am - 9:55 am	Analysis Seminar Online Event Quantitative stability for minimizing Yamabe metrics Robin Neumayer, Department of Mathematics, Northwestern University,
12:00 pm - 1:00 pm	Mathematics Colloquium Online Event Actions of Homeo and Diffeo groups on manifolds Lei Chen, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Physics Colloquium Online Event Enabling novel light phenomena at the subwavelength scale Marin Soljačić, MIT,

Friday, January 8
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Orthogonal group and higher categorical adjoints David Ayala, Department of Mathematical Sciences, Montana State University,
4:00 pm - 5:00 pm	Math Graduate Student Seminar Online Event Categorical Trace Tamir Hemo, Department of Mathematics, Caltech,