Over the last decade, large optical time-domain surveys have
systematized the discovery of transient flares of emission
associated with the tidal disruptions of stars by supermassive
black holes. These tidal disruption events (TDEs) are rare
events...
By an observation of Efimov and Scholze, Efimov's theorem on the
rigidity of localizing motives allows one to construct refinements
of topological Hochschild homology and its variants. In this talk,
I'll explain how this refinement works, sketch an...
The SAT (Boolean Satisfiability) problem asks whether a given
logical formula on n Boolean variables has an assignment of
true/false values to its variables that makes the formula
true. The P vs NP question is equivalent to asking whether
SAT has a...
Matrix-perturbation bounds quantify how the spectral
characteristics of a baseline matrix A change under additive noise
E. Classical results, including Weyl’s inequality for eigenvalues
and the Davis–Kahan theorem for eigenvectors and eigenspaces...
The $\epsilon$-expansion is a widely used technique to study
aspects of renormalization group flows and critical phenomena. In
this talk, I will discuss recent developments of the
$\epsilon$-expansion in the study of boundary and defect...
In this talk I will introduce a new notion of approximability
for metric spaces that can be seen as a categorification of a
concept introduced by Turing for metric groups and as a
generalization of total-boundedness. I will explain how
recent...
Rational curves are one of the main tools in symplectic geometry
and provide a bridge to algebraic geometry. Complex lines are a
more general class of curve that has the potential to connect
symplectic and complex analytic geometry. These curves are...
Link spectral invariants and their homogenizations have been
defined by Cristofaro-Gardiner et.al. In joint work with Ibrahim
Trifa, we define a linear combination of such quasimorphism and
show that it vanishes on the stabilizer of the equator in...
Cold Neptunes appear to be among the most abundant planets in
the Galaxy, yet their role in shaping planetary systems remains
poorly understood. We study the dynamical evolution of cold Neptune
systems born in resonant chains through disk-driven...
