The concept of a rank function on an additive category with cokernels, or more generally, on one…
Seminars
Future and Ongoing Seminars
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
Speaker: Teresa Conde
FC1 0.07 and online |
Algebra and Geometry
The features of a group being finitely generated or finitely presented are, respectively, the n=…
Speaker: José Pedro Quintanilha
FC1 0.07 and online |
Algebra, Combinatorics and Number Theory
We investigate finite and profinite groups with the Magnus property, where a group is said to…
Speaker: Claude Marion
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
A reduced word for a permutation of the symmetric group is its own commutation class if it has…
Speaker: Diogo Soares
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
We introduce the concept of a nonassociative (i.e. not necessarily associative) inverse…
Speaker: Mikhailo Dokuchaev
FC1 1.09 |
Geometry and Topology
Abstract: I will review the application of Hamiltonian flows in imaginary time to problems in…
Speaker: João Luís Pimentel Nunes
Past Seminars
FC1 031 |
Algebra, Combinatorics and Number Theory
In the representation theory of finite-dimensional simple Lie algebras $\mathfrak{g}$, two…
Speaker: Eduardo Monteiro Mendonça
Zoom link |
Semigroups, Automata and Languages
I will give an intro to topological semigroups and the important…
Speaker: Luna Elliot
FC1 005 |
Algebra, Combinatorics and Number Theory
In the context of the theory of Gelfand-Tsetlin modules, Drinfeld categories were introduced in…
Speaker: Lucas Queiroz Pinto
FC1 004 |
General seminar of CMUP
Speaker: Nguyen Tien Zung
FC1 1.09 |
Geometry and Topology
Geometric quantization on symplectic manifolds plays an important role in representation theory…
Speaker: Dan Wang
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
The rational numbers…
Speaker: João Dias
FC1.031 |
Dynamical Systems
In this talk I will talk about some new results for the escape and
hitting statistics for…
Speaker: Yaofeng Su
Online |
Semigroups, Automata and Languages
The Submonoid Membership problem in a group G asks, given a finitely generated submonoid M of G…
Speaker: Ruiwen Dong
FC1.004 |
Dynamical Systems
The game of Rock-Paper-Scissors is an instructive example of cyclic competition between…
Speaker: Alastair Rucklidge
Online seminar |
Algebra, Combinatorics and Number Theory
In this seminar we will talk about results concerning faithful representations of abelian groups…
Speaker: Bruno Zaban
Online Zoom meeting |
Geometry and Topology
In this talk I will explain a general mechanism, based on derived symplectic geometry, to glue…
Speaker: Marco Robalo
Online seminar |
Algebra, Combinatorics and Number Theory
Let $G$ be a group and consider the group $\chi(G)$ obtained from the free product $G \ast G$ by…
Speaker: Guilherme Rocha Ortega
Room FC1 1.09 |
Geometry and Topology
In physics, CS/WZNW duality is an equivalence between Chern–Simons gauge theory and WZNW…
Speaker: Tim Henke
online |
Geometry and Topology
Abstract: In this panoramic talk, we shall provide an…
Speaker: Alejandro Cabrera
Room FC1— 2.26 (Maths Bldg.) |
General seminar of CMUP
After a brief introduction to non-Euclidean 2D geometry using fleece surfaces (tecido…
Speaker: Jeff Weeks
FC1 031 |
Algebra, Combinatorics and Number Theory
The non-abelian tensor product $G \otimes H$ of groups G and H was
introduced by Brown and…
Speaker: Raimundo de Araújo Bastos Júnior
Online Zoom meeting |
Geometry and Topology
Given a flow on a manifold, how to perturb it in order to create a periodic orbit passing…
Speaker: Shira Tanny
FC1 007 |
We shall talk on conjugacy separability of standard arithmetic subgroups of a special orthogonal…
Speaker: Sheila Chagas
FC1 007 |
Algebra, Combinatorics and Number Theory
I shall discuss prosoluble subgroups of free profinite products towards a complete…
Speaker: Pavel Zalesskii
FC1 007 |
Algebra, Combinatorics and Number Theory
The ring of differential operators on a cuspidal curve whose coordinate ring is a numerical…
Speaker: Ulrich Krahmer