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Numerical simulation of wave propagation from deep waters to very shallow waters, including changes over real bottoms
20180221

Speaker: José Simão Antunes do Carmo (Department of Civil Engineering, University of Coimbra)

See the attached file...



On the regularity of the vanishing ideals of graphs
20180307

Speaker: Jorge Neves (CMUC, Univ. Coimbra)

In 2011, Renteria, Simis and Villarreal introduced a new class of binomial ideals associated to graphs. One associates to a simple graph, G, the vanishing ideal of a subset of a projective space over a finite field, parameterized by the edges of the graph. Although originally these ideals were...



A tour in extreme value laws
20180309

Speaker: Jorge Soares (UCUP PhD student)

In this talk, we analyse the stochastic process that arises from a dynamical system by evaluating an observable function along a given orbit of the system. Our goal is to give sufficient conditions for the existence of an Extreme Value Law for the considered process. We will present an example where...



Product formulas, generalized convolutions and integral transforms
20180309

Speaker: Rúben Sousa (UCUP PhD student)

It is wellknown that the ordinary convolution is closely related with the Fourier transform. It is therefore natural to ask: for other important integral transforms, can we define generalized convolution operators having analogous properties? Actually, the answer depends on the existence of a...



Phaseless rank and amoebas
20180309

Speaker: António Goucha (UCUP PhD student)

The phaseless rank of a nonnegative matrix M is defined to be the least k for which there exists a complex matrix N such that N = M, entrywise speaking. In optimization terms, it is the solution to the rank minimization of a matrix under phase uncertainty on the entries. This concept has a strong...



Price models in meanfield games
20180321

Speaker: Diogo Gomes (KAUST, Saudi Arabia)

In this talk, we introduce a priceformation model for electricity markets where a large number of small players can store and trade electricity. Our model is a constrained meanfield game (MFG) where the price is a Lagrange multiplier for the supply vs. demand balance condition. Under mild...



Entropy numbers of compact embeddings or radial and multiradial subspaces of Sobolev spaces with applications.
20180413

Speaker: Leszek Skrzypczak (Adam Mickiewicz Univ., Poznan, Poland)

TBA...


