Por Riccardo Scala (University of Rome 1, “La Sapienza”).
Abstract: We introduce the notion of area of the graph of a smooth function and the definition of the corresponding relaxed functional. We discuss some issues related to determine the domain and the exact value of it on singular maps. Finally we show how this question is related to Plateau-type problems with mixed boundary conditions and how to solve it in some specific cases.
Por Wladimir Neves (Instituto de Matemática, Universidade Federal do Rio de Janeiro, Brasil).
Abstract: In this talk, we consider a fractional type degenerate heat equation posed in bounded domains. We show the existence of solutions for measurable and bounded non-negative initial data, and homogeneous Dirichlet boundary condition. The nonlocal diffusion effect relies on an inverse of the s-fractional Laplacian operator, and the solvability is proved for any s , 0 < s < 1.
Por Cristina Sernadas (Instituto Superior Técnico, Universidade de Lisboa).
Abstract: Some results and reduction techniques for proving decidability of mathematical theories and completeness of logics are presented. The crucial role of the theory of real closed ordered fields is explained. Selected illustrations from Euclidean Geometry to Quantum Logic are discussed.
Por Elia Zardini (Universidade de Lisboa).
In 2017, Portugal, mainly the center of Portugal, where the city of Coimbra is localized, was devastated by terrible wild fires. This tragedy has affected all the Portuguese society that is now extremely engaged in avoiding future similar and dramatic events.
Por Sebastián Buedo Fernández (University of Santiago de Compostela).
Por Tatsuya Miura (Max Planck Institute for Mathematics in the Sciences, Leipzig).
Por Fernando Ferreira (Universidade de Lisboa).
Por Alberto Bressan (Penn State University).
Por André Souto (Universidade de Lisboa).
