BRAG - Brazilian Algebraic Geometry Seminar - Alessandra Sarti (University of Poitiers) скачать в хорошем качестве

BRAG - Brazilian Algebraic Geometry Seminar - Alessandra Sarti (University of Poitiers)

Speaker: Alessandra Sarti (University of Poitiers) - Enriques varieties Event page: https://bit.ly/4ivjSY0 Videos playlist: https://bit.ly/4hx4bOA IMPA, Rio de Janeiro, Março 21 Title: Enriques varieties Speaker: Alessandra Sarti (University of Poitiers) Abstract: Enriques surfaces are special free quotients of K3 surfaces, i.e. these are the quotients of a K3 surface by a fixed point free involution. In higher dimension the notion can be generalized and one can introduce Enriques manifolds which share several properties with Enriques surfaces. In the first part of the talk I will discuss the existing definitions introduced by several authors and construct examples as quotients of irreducible holomorphic symplectic manifolds and Calabi--Yau manifolds. In the second part I will discuss several recent results and I will then extend the notion of Enriques manifold to the singular setting, generalizing the notion of Log Enriques surface introduced by Oguiso and Zhang in the 90's. Most of the results I will present are contained in several joint works with S. Boissière, C. Camere and M. Nieper-Wisskirchen. Redes Sociais do IMPA: https://linktr.ee/impabr IMPA - Instituto de Matemática Pura e Aplicada © https://www.impa.br | https://impa.br/videos Os direitos sobre todo o material deste canal pertencem ao Instituto de Matemática Pura e Aplicada, sendo vedada a utilização total ou parcial do conteúdo sem autorização prévia e por escrito do referido titular, salvo nas hipóteses previstas na legislação vigente. The rights over all the material in this channel belong to the Instituto de Matemática Pura e Aplicada, and it is forbidden to use all or part of it without prior written authorization from the above mentioned holder, except in the cases prescribed in the current legislation.