April 2025 - Geometria_Pisa - Mailing list — Dipartimento di Matematica, UniPI

Seminario di Geometria Martedì 29 Aprile 2025 - Jacopo Guoyi Chen
by Filippo Sarti 28 Apr '25

28 Apr '25

Buongiorno, Vi ricordo che il prossimo seminario di Geometria e Topologia sarà tenuto da Jacopo Guoyi Chen e si terrà Martedì 29 Aprile alle ore 14:30 presso l'aula Riunioni. Per gli interessati ad andare a pranzo con lo speaker, l'appuntamento è in atrio alle 12:45. Allego titolo e abstract Titolo: Non-cobordant hyperbolic manifolds Abstract: In all dimensions n ≥ 4 not of the form 4m+3, we show that there exists a closed hyperbolic n-manifold which is not the boundary of a compact (n+1)-manifold. The proof relies on the relationship between the cobordism class and the fixed point set of an involution on the manifold, together with a geodesic embedding of Kolpakov, Reid and Slavich. We also outline a possible approach to cover the dimensions 4m+3 ≠ 2^k−1. A presto, Carlo e Filippo

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Research position in Geometry at Bilbao
by Bruno Martelli 16 Apr '25

16 Apr '25

Hi, The University of the Basque Country is looking for a competitive experienced candidate for a research-only job in Bilbao (Spain). Here are some details about the position: - The position is a permanent research job with NO teaching requirements - The area is (differential) geometry (any interested candidate working with manifolds is encouraged to contact us) - The candidate should have at least 8 years of experience after obtaining the PhD - The candidate should speak english. No knowledge of spanish or basque is required. - The deadline for applications is the 15th of June. Interested candidates can contact by e-mail Ilya KAZACHKOV <ilya.kazachkov(a)ehu.eus> Best regards, Dario Ascari

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Summer School "Enumerative Geometry and Geometric Representation Theory" - 23 Giugno - 4 Luglio - Pisa
by Francesco Sala 05 Apr '25

05 Apr '25

Carissime/i, sono lieto di informarvi del seguente evento che avrà luogo a Pisa. Se interessati, vi prego di registrarvi. --- Summer School "Enumerative Geometry and Geometric Representation Theory" June 23, 2025 – July 4, 2025 https://events.dm.unipi.it/e/summer_school_2025 The Summer School will focus on the following main subjects: - logarithmic and tropical geometry and relations to enumerative geometry - the geometry of the Hitchin moduli space - Donaldson-Thomas invariants, BPS states, and their categorification - Cohomological Hall algebras and their relation to enumerative geometry - Coulomb branches in geometry and representation theory The school will offer six 5-hour lectures together with exercise/Q&A sessions and Advanced Research sessions. The school welcomes everybody but is primarily intended for Ph.D. students and young postdocs. --- Lecturers - Pierrick Bousseau (University of Georgia, USA, and CNRS, France) - Joel Kamnitzer (McGill University, Montreal, Canada) - Olivier Schiffmann (CNRS and Université de Paris-Saclay, France) - Junliang Shen (Yale University, USA) - Bernd Siebert (The University of Texas at Austin, USA) - Yukinobu Toda (Kavli IPMU, the University of Tokyo, Japan) Advisors for the Afternoon Sessions - Hülya Argüz (University of Georgia, USA) - Camilla Felisetti (Università di Modena e Reggio Emilia) - Lucien Hennecart (University of Edinburgh, UK) - Samuel Johnston (Imperial College London, UK) - Dinakar Muthiah (University of Glasgow, UK) - Tudor Pădurariu (CNRS and Sorbonne Université, France) Scientific Committee - Andrei Neguţ (EPFL, Switzerland) - Francesco Sala (Università di Pisa) - Olivier Schiffmann (CNRS and Université de Paris-Saclay, France) - Mattia Talpo (Università di Pisa) Organizing Committee - Andrea Maffei (Università di Pisa) - Francesco Sala (Università di Pisa) - Mattia Talpo (Università di Pisa) --- Francesco

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Seminario di Geometria Martedì 8 Aprile 2025 - Marco Marengon
by Carlo Collari 03 Apr '25

03 Apr '25

Buongiorno, Vi ricordo che il prossimo seminario di Geometria e Topologia sarà tenuto da Marco Marengon e si terrà Martedì 8 Aprile alle ore 14:30 presso l'aula Riunioni. Per gli interessati ad andare a pranzo con lo speaker, l'appuntamento è in atrio alle 12:45. Allego titolo e abstract Titolo: Splitting links by integer homology spheres Abstract: We show that there exist two embedded 2-spheres in the 4-sphere which are separated by an integer homology 3-sphere Y (i.e., a manifold with the same integer homology of the 3-sphere), but not by the standard 3-sphere. This is joint work with Marco Golla. A presto, Carlo e Filippo

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