Events and Activities

It has long been established that the properties of type Ia supernovae (SNe Ia) depend on their local environment, even after typical standardisation methods. This is typically referred to as the mass step, where SNe Ia in high-mass galaxies are on...

We use the min-max construction to find closed hypersurfaces which are stationary with respect to anisotropic elliptic integrands in any closed n-dimensional manifold . These surfaces are regular outside a closed set of zero n-3 dimension. The...

Abstract: Astrophysical events such as core-collapse supernovae (SN) and neutron star mergers offer unique opportunities to explore physics beyond the Standard Model. In this seminar, I will provide an overview of the mechanisms underlying these...

Organizers:Xuezhi Bian (Princeton), Jonathan Fetherolf (Princeton), Sharon Hammes-Schiffer (Princeton), David Reichman, (Columbia), Joseph Subotnik (Princeton)

Registration is free but required:
https://docs.google.com/forms/d/e...

We describe three constructions of spherical roots of spherical varieties via embddings, Borel orbits, and harmonic analysis, and give a hint for why they yield the same results. Then we describe more recent extensions of this theory to arbitrary G...

Organizers:Xuezhi Bian (Princeton), Jonathan Fetherolf (Princeton), Sharon Hammes-Schiffer (Princeton), David Reichman, (Columbia), Joseph Subotnik (Princeton)

Registration is free but required:
https://docs.google.com/forms/d/e...

I will show that any Schubert or Richardson variety R in a flag manifold G/P is equivariantly rigid and convex. Equivariantly rigid means that R is uniquely determined by its equivariant cohomology class, and convex means that R contains any torus...