Past Events

Reovirus is a nonpathogenic virus that inhabits the enteric tract of mammals. It is a double-stranded RNA virus that showed the ability to naturally infect and lyse tumors under in vitro and in vivo conditions. Unmodified reovirus (T3wt) is currently...

At a previous presentation Geoff Cruttwell asked me, if the vertical bundle of a principal bundle in a join restriction category is trivial. This was not just an interesting question on its own, it also pointed towards more going on with group...

There has been extensive study of diagonalization of matrices, or finding the Jordan Canonical Form for a matrix that is not diagonalizable. Diagonalization can be viewed as using a similarity to concentrate the magnitude of all the entries with a...

AV-modules are representations of Lie algebra V of vector fields that admit a compatible action of the commutative algebra A of functions. This notion is a natural generalization of D-modules. In this talk we shall start by reviewing the theory of AV...

Derivative-free algorithms seek the minimum of a given function based only on function values queried at appropriate points. Their performance is known to worsen as the problem dimension increases. Recent advances in developing randomized derivative...

In this talk I will describe the first general construction of regular unimodular triangulations for matroid base polytopes. This construction extends to all integral generalized permutahedra. I will also discuss how this relates to White's...

For over a century, scientists have studied striking spatiotemporal patterns during the continual tooth replacement of reptiles. Aside from the compelling aesthetics of this phenomenon, it is thought that understanding the underlying mechanisms may...

A set $A$ is Sidon if all pairwise sums of elements in $A$ are distinct. A pair of sets $A,B$ is co-Sidon if $|A+B| = |A||B|$, i.e., all sums $a+b$ are distinct with $a \in A$ and $b \in B$. We will focus on the setting $A,B \subset \{0,1\}^n$, where...

Together with climate change, the increase in anthropogenic and natural disturbances affects the envi- ronmental conditions of an ecosystem and thus can cause a pronounced change in its functionality. It, therefore, becomes critical to have an...

Consider the vector space (parameter space) of all homogeneous forms of degree $d$ in $n+1$ variables defined over some field $K$. Geometrically, the vanishing set of such a form corresponds to a hypersurface of degree $d$ in the projective space $P^...