The C0 flux conjecture predicts that a symplectic diffeomorphism
that can be C0
approximated by a Hamiltonian diffeomorphism is itself
Hamiltonian. We describe how the flux conjecture relates to new
instances of the strong Arnol’d conjecture and...
We will discuss a generalization of the celebrated Minimax
Theorem (von Neumann, 1928) for binary zero-sum games. A simple
game which fails to satisfy Minimax is Ephraim Kishon's “Jewish
Poker” (see [1,2] below). In this game, each player picks a...
Interpreting observations of extreme astrophysical phenomena
requires a detailed understanding of particle acceleration in
astrophysical environments. These accelerated particles, known as
cosmic rays, approximately follow a power-law distribution...
We discuss shockwave geometries and the connections to aspects
of flat space holography. We first show how the ’t Hooft
commutation relations of shockwave operators are equivalent to
the commutation relation between soft and Goldstone modes
familiar...
With every bounded prism Bhatt and Scholze associated a
cohomology theory of formal p-adic schemes. The prismatic
cohomology comes equipped with the Nygaard filtration and the
Frobenius endomorphism. The Bhatt-Scholze construction has been
advanced...
Exoplanet systems are expected to evolve with time as they age.
In most cases though, the dynamical evolution of exoplanet systems
over billion-year timescales are hard to observe. I'll describe how
Galactic kinematics can provide accurate and...
Random restrictions are a powerful tool used to study the
complexity of boolean functions. Various classes of boolean
circuits are known to simplify under random restrictions. A prime
example of this, discovered by Subbotovskaya more than 60
years...
I discuss physical motivations from black hole physics and
holography for expecting finite quantum entanglement entropy in
quantum gravity. I describe recent and earlier results in defining
such a notion in perturbative string theory by a stringy...
Let K be a finite extension of Qp. The Emerton-Gee stack for GL2
is a stack of etale (phi, Gamma)-modules of rank two. Its reduced
part, X, is an algebraic stack of finite type over a finite field,
and can be viewed as a moduli stack of two...
