Previous Conferences & Workshops
Profinite Properties of Artin Groups
Artin groups are a family of groups generalizing braid groups,
and are given by simple looking group presentations. In this talk,
I will discuss profinite properties of Artin
groups, such as residual finiteness, and the connection between the
group...
Computing Poisson Boundaries without Moment Conditions
Josh Frisch
The Poisson boundary is a measure theoretic object which
classifies both the space of possible asymptotic events of a
random walk and the space of bounded harmonic functions. For
most identifications so far a moment condition has proved crucial.
I...
Organizers: Nima Arkani-Hamed, June Huh, Thomas Lam, and Bernd
Sturmfels
This event aimed to foster collaboration between mathematicians
and physicists. The focus was on the intersection of combinatorial
geometry and fundamental physics, covering...
Detecting Stationary Measure Classes
Kunal Chawla
A random walk on a hyperbolic group G will converge almost
surely to the boundary, defining a stationary measure at
infinity. When G is a cocompact fuchsian group, this boundary is
the circle, and when the random walk is finitely supported it
is...
New Invariants for Hamiltonian Isotopy Classes of Monotone Lagrangian Torus Fibers
Felix Schlenk
Based on the exotic Lagrangian tori constructed in CP$^2$ by
Vianna and Galkin-Mikhalkin, we construct for each Markov triple
three monotone Lagrangian tori in the 4-ball, and for triples with
distinct entries show that these tori lie in different...
Train Track Automata for Outer Automorphisms of Free Groups and Geodesics in Outer Space
The outer automorphism group of the free group Out(F_r) acts as
the isometry group on the deformation space of weighted graphs,
Culler-Vogtmann Outer space CV_r. The train track theory of
Bestvina-Feighn-Handel bridges studying topological...
Quadratic Characters With Non-Negative Partial Sums
Kannan Soundararajan
Are there infintely many quadratic characters (for instance, the
Legendre symbol mod p) for which the partial sums are always
non-negative? Although only 0% of characters can have this
property, numerical work (most recently by Kalmynin)
suggests...
1:00pm|Simonyi 101 and Remote Access
Organizers: Nima Arkani-Hamed, June Huh, Thomas Lam, and Bernd
Sturmfels
This event aimed to foster collaboration between mathematicians
and physicists. The focus was on the intersection of combinatorial
geometry and fundamental physics, covering...
