General seminar of CMUP

Optimization of pollution emission in water bodies

Speaker: 

Alexey Davydov (Vladimir State Univ)

Date: 

Wednesday, 20 January, 2010 - 15:00

Venue: 

Departamento de Matemática (sala a anunciar)

We analyze a possibility to reduce an impact of pollution emission in water bodies on its quality exponent by an appropriate redistribution of pollution density. Mathematically we consider a one dimensional model with advection, diffusion and reaction term and show that in the licensed area for a...

Singularities of first integral of Implicit Systems of ODE and Legendre mappings

Speaker: 

Vladimir Zakalyukin (Liverpool Univ & Moscow State Univ)

Date: 

Wednesday, 20 January, 2010 - 14:00

Venue: 

Departamento de Matemática (sala a anunciar)

We give an introduction to the theory of singular Legendre varieties and then describe its application to the generic singularities classification of the implicit systems of ODE first integrals in three space and to the wave front propagations.

Contributos antigos e actuais da Estatística para a Astronomia

Speaker: 

Nuno Crato

Date: 

Friday, 13 November, 2009 - 15:30

Este Ano Internacional da Astronomia é também um ano de celebração da Matemática, pois estas duas áreas do conhecimento sempre estiveram interligadas. Falaremos nesta palestra de uma área da matemática, a estatística, que pareceria mais apropriada ao estudo de fenómenos erráticos, como os da...

Symplectic Topology: Rigidity and Flexibility of Ellipsoids

Speaker: 

José Basto-Gonçalves

Date: 

Wednesday, 8 July, 2009 - 13:30

Venue: 

Sala 0.31 MA

Very basic results and ideas of symplectic topology are presented in the context of symplectic embeddings of ellipsoids, in a way that should be understandable to any post-graduate (or good undergraduate) student , with no previous knowledge of the subject. A simple version of symplectic...

The Central Role of PDF Moments in Advanced Adaptive Filtering and Information Theories

Speaker: 

José C. Príncipe, Ph.D. Distinguished Professor of Electrical and Computer Engineering University of Florida, Gainesville principe@cnel.ufl.edu

Date: 

Monday, 7 July, 2008 - 15:00

Venue: 

Anfiteatro 0.3, Edifício das Matemáticas, FCUP

Our work on Information Theoretic Learning uncovered the central role that moments of the PDF, instead of the moments of the data, assume in the definition of cost functions for advanced adaptive filtering. An obvious link to Information Theory thru Renyi’s entropy exists and has provided further...

Euler : Life, the universe, and optimization

Speaker: 

Francis Clarke Institut Universitaire de France et Université de Lyon

Date: 

Wednesday, 2 April, 2008 - 13:30

Venue: 

Sla 031, Edíficio das Matemáticas, FCUP

Leonhard Euler, who would be 300 years old if he had not unfortunately died, was the preeminent mathematician of the 18th century. His many fundamental contributions range from number theory to geometry, differential equations to infinite series, optimization to probability, optics to mechanics....

SOFT LOSS OF STABILITY IN AN OCEAN CIRCULATION BOX-MODEL

Speaker: 

Alexey Davydov

Date: 

Friday, 2 February, 2007 - 11:00

Venue: 

Anfiteatro 0:30, Departamento de Matemática Aplicada FCUP

Box-models are important for qualitative description of thermohaline circulation. Their bifurcation analysis helps to understand possible mechanisms for the loss of stability. So far, bifurcations in box-models have been studied numerically, except for the saddle-node bifurcation in the Stommel...

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