The main goal of this talk is to illustrate the role of quaternions in number theory.
Seminars
Future and Ongoing Seminars
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
Speaker: Adriana Cardoso
FC1 031 and online |
Algebra, Combinatorics and Number Theory
(Joint work with Ben Blum Smith, Johns Hopkins University, USA) The barycentric subdivision of a…
Speaker: Sophie Marques
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
Given an associative algebra A over a field F, a polynomial identity for A is a polynomial in…
Speaker: Elena Pascucci
Room FC1 1.09 |
Geometry and Topology
On a compact Kähler manifold $X$, the non-abelian Hodge correspondence establishes a…
Speaker: Pedro Silva
Past Seminars
FC1.031 |
Dynamical Systems
Françoise Pène has proven functional limit theorems for Birkhoff sums of observables of the…
Speaker: Baptiste Guillaud
Room FC1 0.07 |
Geometry and Topology
Cartan geometries are structures on manifolds which are infinitesimally modelled on homogeneous…
Speaker: João Nuno Mestre
Room FC1 0.07 |
Geometry and Topology
The moduli spaces of polygons in $\mathbb{R}^3$, with prescribed side lengths, are naturally…
Speaker: Carlos Florentino
FC1 031 and online |
Algebra, Combinatorics and Number Theory
In this talk I will give a brief introduction to the study of conditional indepedence (CI) and…
Speaker: Eliana Gélvez
FC1 1.09 |
Geometry and Topology
The main purpose of this presentation is to dive deep in the theory of Riemann surfaces, through…
Speaker: Guilherme Nascimento
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Speaker: Ana Paula Santana
Room FC1-0.30, DM-FCUP, University of Porto |
Analysis
The…
Speaker: Gérard Meurant
Room FC1 1.09 |
Geometry and Topology
Some features about the geometry of certain moduli spaces, including its main topological…
Speaker: David Alfaya
FC1 031 and online |
Algebra, Combinatorics and Number Theory
I will review some classical examples of groups whose strictly descending chains of subgroups…
Speaker: Sam Corson
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Kruskal’s uniqueness theorem gives a simple criterion ensuring that a 3-way tensor admits a…
Speaker: Alexander Taveira Blomenhofer
FC1 1.09 |
Geometry and Topology
Abstract : The Hitchin connection is a central concept in modern geometry,…
Speaker: Zakaria Ouaras
FC1.031 |
Dynamical Systems
We introduce a class of linear bounded invertible operators on Banach spaces, called shift…
Speaker: Udayan B. Darji
FC1 031 and online |
Algebra, Combinatorics and Number Theory
The commuting graph of a finite non-commutative semigroup $S$ is the simple graph whose vertices…
Speaker: Tânia Paulista
FC1.031 |
Dynamical Systems
This talk concerns entropy-dimensional concepts recently developed in order…
Speaker: Gustavo Pessil
FC1 029 |
Missing data is a pervasive issue in statistics and data analysis, arising in diverse contexts:…
Speaker: Christian Heumann
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Cantor famously used two versions of Diagonalization for his fundamental results in set theory.…
Speaker: Reinhard Kahle
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Polynomial expansion concerns the heuristic expectation that, for a typical polynomial P in n…
Speaker: Nuno Arala Santos
FC1 0.06 |
Geometry and Topology
Abstract: I will consider the Hitchin fibration for Higgs bundles with…
Speaker: Alexander Früh
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Quasigroupoids and weak Hopf quasigroups are non-associative generalizations of groupoids and…
Speaker: Ramón González Rodríguez
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
The Hasse principle is the idea that a Diophantine equation over the rational numbers should…
Speaker: Nuno Freitas