Well deserved congratulations to Algebraic Number Theorist, Aaron Pollack who has received two recent honors.  Aaron has been named as a 2026 Simons Fellowship in Mathematics and one of 101st class of Guggenheim Fellows.  Aaron's research concerns automorphic forms, their arithmetic properties, and their L-functions. His most recent works develop properties of automorphic forms on exceptional groups.

Congratulations to Alex Cloninger on receiving a Simons Fellowship in Mathematics.  Alex researches problems in the area of geometric data analysis and applied harmonic analysis, with a focus on approaches that model the data as being locally lower dimensional, including data concentrated near manifolds or subspaces.  These types of problems arise in a number of scientific disciplines, including imaging, medicine, and artificial intelligence, and the techniques developed relate to a number of machine learning and statistical algorithms, including deep learning, network analysis, and measuring distances between probability distributions.  His current research plans are to develop new algorithms grounded in geometric methods that are both computationally efficient and theoretically rigorous.

Professor Jiawang Nie was one of 25 members recognized by the Society for Industrial and Applied Mathematics (SIAM) for their outstanding research and service to the community.  Professor Nie was recognized for contributions to optimization, tensor computation, truncated moment problems, and convex algebraic geometry.

Assistant Professor Morris Ang has received the Bernoulli Society for Mathematical Statistics and Probability 2026 New Researcher Award in Probability Theory. The Bernoulli Society was founded in 1975 as a Section of the International Statistical Institute (ISI). Established in 1885, the ISI is one of the oldest scientific associations operating in the modern world.

The Bernoulli Society supports the advancement of the sciences of probability (including stochastic processes) and mathematical statistics and of their applications to all those aspects of human endeavour which are directed towards the increase of natural knowledge and the welfare of mankind.

Morris Ang received his Ph.D. from MIT in 2022. He then spent two years at Columbia University as a Junior Fellow of the Simons Society of Fellows before joining the faculty at UC San Diego in 2024. Ang’s research interests are in Probability Theory, especially random conformal geometry: Schramm‑Loewner evolution, Liouville quantum gravity, random planar maps, and conformal field theories.

We are deeply saddened to announce the passing of our colleague Benedict (“Dick”) Gross on December 19, 2025.

Benedict Gross was a distinguished and profoundly influential number theorist, best known for the Gross–Zagier theorem on the L-functions of elliptic curves, as well as numerous other fundamental contributions to algebraic number theory, representation theory, and arithmetic geometry. His many honors included a MacArthur Fellowship (1986), the Cole Prize in Algebra (1987), election to the American Academy of Arts and Sciences (1992), the National Academy of Sciences (2004), and the American Philosophical Society (2017).

After spending most of his mathematical career as a professor at Harvard University (1985–2015), Dick joined the UCSD Department of Mathematics, where he taught several inspiring graduate courses and played an important role in the research life of our department, particularly within our number theory group. Dick was a generous mentor to students and junior faculty, widely admired for his charisma, depth and clarity of thought, intellectual generosity, and unyielding commitment to the mathematical community.

Benedict Gross will be deeply missed by the number theory community and the broader mathematical world. For more than four decades, he shaped the field through profound mathematical contributions and exceptional dedication as a teacher, mentor, leader, and colleague. We extend our deepest condolences to his wife, Professor of Medicine Jill Mesirov, his sons Sam and Isaac, and his three grandsons.

While we develop more material for our website, please refer to the tribute posted by Harvard University:

https://www.math.harvard.edu/in-memory-of-professor-emeritus-benedict-gross/

The Department of Mathematics Front Desk will be closed for Winter Break starting on Thursday 12/18/25. We will reopen on Monday 1/5/26.

In a recent opinion piece in the San Diego Union Tribune, Professors Julian Betts (Economics), Akos Rona-Tas (Sociology and Vice Chair of UCSD Academic Senate) and Michael Holst (Chair, Department of Mathematics) discuss the issue of Mathematics preparation and their concerns about what it means for future students (as first presented in an Academic Senate workgroup report).

Congratulations to Adrian Ioana on being named the inaugural holder of the Presidential Chair in Mathematics. Professor Ioana is an internationally recognized leader in the general areas of operator theory and functional analysis. He is especially known for his work on von Neumann algebras, a topic with important applications in quantum mechanics and ergodic theory.

2025 Simons Fellow in Mathematics

The Department of Mathematics is delighted to announce that Professor Cristian D.
Popescu was awarded one of the 2025 Simons Fellowships in Mathematics by the
Simons Foundation.

https://www.simonsfoundation.org/grant/simons-fellows-in-mathematics/?tab=awardees

Professor Popescu will use this award to spend the 2025-2026 academic year as a
Visiting Fellow at Princeton University and as a Member of the School Mathematics at
the Institute for Advanced Study, Princeton. While in Princeton, Professor Popescu will
investigate new approaches to the theory of special values of motivic L-functions, a
central area of research within number theory and arithmetic geometry.

This is Professor Popescu’s second Simons Fellowship, following a 2015-2016 award
spent as a Visiting Fellow at Harvard University.

The Simons Foundation, established in 1994 by Jim and Marilyn Simons, advances the
frontiers of research in mathematics and the basic sciences through grant funding,
support for research and public engagement (https://www.simonsfoundation.org).

Congratulations to incoming faculty member Federico Pasqualotto on receiving the Stefan Bergman Fellowship from the American Mathematical Society (AMS). Federico's research interests center on the partial differential equations of mathematical physics that arise in several physical theories: fluid mechanics, nonlinear wave equations, mathematical general relativity and dispersive equations.

Learn more about the fellowship on the AMS website.