Centre for Mathematics, University of Coimbra

Seminars

Quadratic-phase Fourier transform and related topics

2026-05-15

Speaker: Rita Guerra (Univ. de Aveiro)

In recent years, the quadratic-phase Fourier transform has been extensively studied. In this talk, we will present the quadratic-phase Fourier transform and some of its properties, namely an inversion theorem, a Riemann-Lebesgue lemma, a Plancherel lemma and a Hausdorff-Young inequality....

Differential geometry of quaternionic manifolds - An introduction

2026-05-20

Speaker: Pedro Pessoa (CMUC, UC|UP PhD student)

We will give an overview of S. M. Salamon's article where he constructs invariant differential operators for quaternionic manifolds, which we will explore in more detail in the following sessions.Reference: S. M. Salamon, Differential geometry of quaternionic manifolds. Annales scientifiques...

Smoluchowski coagulation equation with a flux of dust particles

2026-05-22

Speaker: Marina Ferreira (CNRS, University of Toulouse)

The Smoluchowski coagulation equation is a classical equation describing the distribution of particle sizes undergoing binary coagulation. Despite extensive study for over a century, it continues to pose significant analytical challenges, particularly concerning long-time behavior for...

Global regularity for reaction-cross-diffusion systems with nonlocal terms

2026-06-16

Speaker: Rafael Díaz Fuentes (Università di Cagliari, Italy)

Motivated by models of biological chemotaxis, we establish the global existence and boundedness of classical solutions for a class of strongly coupled parabolic systems involving cross-diffusion and nonlocal source terms. The key insight is that the pathway to proving global regularity...

From phase separation in heterogeneous media to learning training schemes for image denoising

2026-06-19

Speaker: Irene Fonseca (Carnegie Mellon University, USA)

What do these two themes have in common? Both are treated variationally, both deal with energies of different dimensionalities, concepts of geometric measure theory prevail in both, and higher order penalizations are considered. Will learning training schemes for choosing these...

Using symplectic groupoid multiplication for Poisson integrators

2026-06-24

Speaker: Alejandro Cabrera (Uni. Politècnica de Catalunya, Spain)

TBA...

TBA

2026-09-28

Speaker: Peter Gothen (Univ. of Porto)

TBA...

Universality and special functions

2026-10-22

Speaker: Thomas Kriecherbauer (Univ. of Bayreuth, Germany)

Universality is the somewhat surprising observation that the behavior of quite different models, sometimes even stemming from different branches of mathematics or physics, may be described by the same class of special functions. An example for this phenomenon that has attracted a good deal...

Financiado total ou parcialmente pela FCT, Fundação para a Ciência e a Tecnologia, I.P., sob o Financiamento de:
Projeto Estratégico com a referência DOI UID/00324/2025. https://doi.org/10.54499/UID/PRR/00324/2025 UID/PRR/00324/2025 https://doi.org/10.54499/UID/PRR2/00324/2025 UID/PRR2/00324/2025
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