Por Pedro Freitas (DHFC - Ciências ULisboa e CIUHCT - ULisboa).

Por Gonçalo Oliveira (Universidade Federal Fluminense - UFF).

By Sean Lawton (George Mason Univ.)

Isabel José Capelo Ferreira Nobre defende a dissertação "Formações e classes de Fitting".

Por Gabrielle Nornberg (University of São Paulo and Sapienza Università di Roma).

Por Ederson Moreira dos Santos (Universidade de São Paulo - São Carlos - Brazil).

Por Tom Sutherland (Grupo de Física Matemática).

Abstract: I will give an explicit description of the space of stability conditions of a set of Calabi-Yau-3 triangulated categories labelled by the Painlevé equations. We will see how the Painlevé equations appear in a Riemann-Hilbert problem motivated by the enumerative geometry of Calabi-Yau-3 categories whose solution is related to the study of the monodromy of opers.

Por Mário Edmundo (FCUL e CMAFcIO, Universidade de Lisboa).

Por Emílio Franco (IST).

Abstract: While it is well known that the moduli space of G-bundles over a smooth projective curve is compact, it is not the case for an arbitrary base variety. This motivated the definition of G-sheaves by Gomez and Sols who proved that their moduli space is a compactification of the moduli space of G-bundles. In this talk I will study the deformation and obstruction theory of these objects when G is either the symplectic or the orthogonal group.

Por Gonenc Onay.

Abstract: This is a longstanding problem. We will expose a complete axiom system, which is also model complete and satisfied by F_p^{alg}((t)). A proof will be sketched. This work is joint with Françoise Delon (Paris) and Arno Fehm (Dresden) and should be considered as in progress.