College of Natural & Agricultural Sciences

Department Colloquiums & Events

From Combinatorics to Knot Theory (and Back Again)
January 22, 2025 @ 4:00 pm
Skye 284
Nicolle Gonzalez, UC Berkeley Catalan numbers are among the most ubiquitous objects in mathematics, arising naturally in combinatorics, representation theory, geometry, and many other areas. Although there are various polynomial generalizations of these numbers, particularly fruitful are the so-called (q,t)-Catalan polynomials.…
Nishikawa’s Conjecture and Beyond
January 21, 2025 @ 4:00 pm
Skye 284
Xialong Li, Wichita State University In 1986, Nishikawa conjectured that a closed Riemannian manifold with positive (or nonnegative) curvature operator of the second kind is diffeomorphic to a spherical space form (or a Riemannian locally symmetric space, respectively). In this talk, I will begin with an overview of sphere…
Geometry and dynamics on K3 surfaces
November 13, 2024 @ 4:00 pm
Zoom
Valentino Tosatti, NYU K3 surfaces are a class of compact complex manifolds that enjoys many special properties and play an important role in several areas of mathematics. I will discuss a new interplay between the geometry of K3 surfaces equipped with their Calabi-Yau metrics, and dynamics of holomorphic diffeomorphisms of these…
Mathematical models of spatiotemporal organization in multicellular organisms
November 06, 2024 @ 2:00 pm
Skye 361
Eric Cytrynbaum, UBC In this talk, I’ll discuss two recent lines of research in my group, related by the common element of being a multiscale problem of spatial organization. (1) For over a century, the development and replacement of reptile teeth has been of interest in comparative anatomy and evolutionary biology due to the…
AMS 2024 Western Sectional Meeting
October 26, 2024 @ 7:00 am
UCR Main Campus - HUB, Skye Hall, Various - See Program
  https://www.ams.org/meetings/sectional/2304_program.html MS Sectional Meeting Program Current as of Friday, October 25, 2024 03:30:05 Deadlines Timetable Abstract submission Registration/Housing/Etc. Special Event or Lecture   Inquiries: meet@ams.org 2024 Fall Western Sectional Meeting…
Visiting Assistant Professor Introduction Colloquium
October 16, 2024 @ 4:00 pm
Skye 284
UCR Math's New VAPs will speak to introduce themselves. Please join us. Math VAP Page
On the shape of pairs of random permutations
October 09, 2024 @ 4:00 pm
Skye 284
Antoine Song, Caltech Minimal surfaces are surfaces which locally minimize the area, and are a classical topic in Differential Geometry. This talk is going to be about minimal surfaces in Hilbert spheres. I will motivate their study by explaining how these objects provide a new way to understand fundamental results like Mostow's…
Cyclic Cubic Extensions of Q, Binary Cubic Forms and Sylvester's Conjecture
October 02, 2024 @ 4:00 pm
Skye 284
B. Sury, Indian Statistical Institute Bangalore, India The classical Diophantine problem of determining which integers can be written as a sum of two rational cubes has a long history, from early works of Sylvester, Satg\´{e}, Selmer etc. and, up to recent work of Alp\”{o}ge-Bhargava-Shnidman. A conjecture attributed to Sylvester…
Let us help you with your search