Fwd: Geometric Topology seminar

[ZUDDAS DANIELE]

Dear all,

I would like to forward this announcement for an online talk

Kind regards,
Daniele Zuddas


Da: Paola CRISTOFORI <paola.cristofori at unimore.it>
Oggetto: Geometric Topology seminar
Data: 27 gennaio 2023, 19:02:20 CET


Dear Colleagues,
The last appointment with the Geometric Topology seminars will be on Friday, February 3rd at 3 p.m. (Italian time = GMT+1).
Prof. Daniele Zuddas (University of Trieste) will give the talk:

Branched covering simply-connected 4-manifolds by a surface product

Abstract: We will show that every closed simply-connected smooth 4-manifold is branched covered by the product of an orientable surface with the torus. The proof is based on an almost explicit construction in four steps, which moreover turns out to be natural with respect to spin structures. This solves a problem in Kirby's list and it is related with a conjecture by Eliashberg about branched covering 4-manifolds by symplectic manifolds. This is a joint work with David Auckly, Inanç Baykur, Roger Casals, Sudipta Kolay and Tye Lidman.

The talk will be held online through Meet. Here is the link to attend:  https://meet.google.com/ojw-hwpy-mah

Please, forward this message to anyone you think could be interested.

We look forward to welcoming you!

Best regards,

Maria Rita Casali and Paola Cristofori

--
Prof. Paola Cristofori
Department of Physics, Mathematics and Computer Science
University of Modena and Reggio Emilia
Via Campi 213/B
41125 Modena (Italy)
Tel. +39 059 2055189