In the 1950’s Davenport, Mirsky, Newman and Rado proved that if the integers are partitioned by…
Future and Ongoing Seminars
The Gruenberg-Kegel graph of a group is defined as the graph whose vertices are the primes that…
This has been an open question for more than 70 years. I'll review what is known, including some…
Quasi-hereditary algebras are a class of finite-dimensional associative algebras that appear…
Past Seminars
Ideas from dynamical systems and thermodynamic formalism can be useful in rigorously estimating…
In commutative algebra, a major subject of investigation is the study of ideals in polynomial…
This is a complete study of the dynamics of polynomial planar vector fields whose linear
There is a rich theory in dynamical systems involving the study of "shrinking targets". Given…
Towards a homological Kitaev model by Ulrich Krähmer (Dresden)
The classical Livsic theorem is a simple and useful result for Anosov diffeomorphism (or flows)…
sl2-crystals and duality in monoidal categories ( joint w. T. Zorman)…
Abstract: …
Hopf braces, related structures and their associated categories by Brais Ramos…
In this talk, I will describe how Riemannian submersions on a spacetime of the form $M_4 \times…
Abstract: In 1892, Klein’s Erlangen program proposed that all geometric problems should…
After reviewing the classical theory of quiver moduli spaces via Mumford’s reductive GIT, I…
How much does the universal enveloping algebra of a Lie algebra remember about the Lie algebra…
Let $F$ be a family of finite groups closed under taking subgroups, quotients and finite direct…
The classification of tuples of matrices up to simultaneous conjugation is a classical problem…
Given a set of generators of a finite semigroup, a natural way to show that a…
Numerical semigroups are the subsemigroups of the set of natural numbers that are cofinite and…
A monoid is said to be right noetherian if all of its right congruences are finitely…
A numerical semigroup $S$ is a cofinite submonoid of the aditive monoid $(\mathbb{N},+)$. The (…
HNN extensions can be used as a way to produce a more complicated group from a simpler one, they…
