March 2026 - Geometria_Pisa - Mailing list — Dipartimento di Matematica, UniPI

Baby Geometri e uncinetto
by Giorgia BENASSI 25 Mar '26

25 Mar '26

Carə tuttə, vi invitiamo al seminario dei Baby Geometri della prossima settimana, in cui impareremo le basi dell'uncinetto per arrivare a costruire un piano iperbolico. Per avvicinarci, costruiremo prima tutte le 1-varietà compatte a meno di omeomorfismo, e una parte di piano euclideo. Invitiamo tutte le persone interessate a compilare questo form <https://docs.google.com/forms/d/e/1FAIpQLSdzYY6aAZNbTPKEsV0SP3kF62bUeXOW-Uo…>, per decidere la data e capire quanti gomitoli saranno necessari. Vi ricordiamo infine che potrete trovare informazioni sui prossimi seminari sul nostro sito <https://sites.google.com/view/babygeometri>. A presto, Lə organizzatorə

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Seminario giovedi' 19 marzo
by Andrea Tamburelli 24 Mar '26

24 Mar '26

Cari colleghi, vi segnalo che giovedi' 19 marzo alle 14:30 in saletta riunioni ci sara' un seminario di geometria. Trovate qui sotto titolo e abstract. Per chi fosse interessato, ci troviamo nell'atrio davanti all'aula Riunioni alle 13 per andare a pranzo con lo speaker. Saluti, Andrea _______________________________________________________________________________________________ Titolo: Odd magical triples and maximal Higgs bundle Speaker: Enya Hsiao (Lipsia) Abstract: Higher Teichmüller theory is the study of connected components in the G^R-character variety consisting entirely of discrete and faithful surface group representations. Under the nonabelian Hodge correspondence, various problems in higher Teichmüller theory can be approached by using topological methods on the G^R-Higgs bundle moduli space. Following recent developments of Theta-positivity on the character variety side, it has been proposed by Bradlow, Collier, Garcia-Prada, Gothen and Oliveira that the corresponding components on the Higgs bundle moduli space are characterized by Slodowy slices of magical sl2-triples. In this talk, I will explain how the above framework can be extended to include the case of maximal components of a nontube type Hermitian Lie group by introducing the notion of odd magical triples, further supporting the expectation that all higher Teichmüller components arise via a Cayley correspondence.

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Seminario Baby Geometri 19/03
by Giorgia BENASSI 13 Mar '26

13 Mar '26

Carə tuttə, vi invitiamo al seminario dei Baby Geometri della prossima settimana: Giovedì 19 Marzo 2026, alle ore 11:15 Presso l’Aula Bianchi Scienze (Palazzo della Carovana) Simone Tagliente (Rényi Institute of Mathematics and Eötvös Loránd University, Budapest) terrà un seminario dal titolo: Exotic 4-manifolds with infinite dihedral fundamental group di cui riportiamo l'abstract: We construct infinite families of exotic 4-manifolds with infinite dihedral fundamental group. This group is the non-trivial semi-direct product of Z and Z_2, or equivalently the free product of Z_2 and Z_2. The key idea of the construction is to assemble simply-connected building blocks to construct the universal cover, and then to perform surgeries in an equivariant way. The diffeomorphism types of these exotic manifolds are distinguished by the Seiberg-Witten invariants of their double covers, while to show that their homeomorphism type is the same we use a recent result of Hillman-Kasprowski-Powell-Ray. Vi ricordiamo infine che potrete trovare informazioni sui prossimi seminari sul nostro sito <https://sites.google.com/view/babygeometri>. Tutte le persone interessate sono invitate a partecipare. A presto, Lə organizzatorə

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Fibrations in Group Theory and Topology - Oxford
by Giovanni Italiano 12 Mar '26

12 Mar '26

Dear all, This is the first announcement of the conference "*Fibrations in Group Theory and Topology*" that will be held at the University of Oxford, in 7-11 September 2026. There is (limited) accommodation funding for early career researchers, please apply as early as possible if you are interested in it, and before 10 April 2026. Registration is open! All the information can be found on the website https://sites.google.com/view/oxfordfibring2026. Please feel free to contact me with any questions. This is the list of speakers: *Mini-Course Speakers* Wolfgang Lück (Universität Bonn) Bruno Martelli (Università di Pisa) *Speakers* Macarena Arenas (University of Cambridge) Grigori Avramidi (MPIM Bonn) Sam Fisher (ICMAT Madrid) Kasia Jankiewicz (University of California Santa Cruz) Monika Kudlinska (University of Cambridge) Claudio Llosa Isenrich (Karlsruher Institut für Technologie) Matteo Migliorini (Karlsruher Institut für Technologie) Boris Okun (University of Wisconsin–Milwaukee) Kevin Schreve (Louisiana State University) Matthew Stover (Temple University) Best wishes, Giovanni Italiano

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Fw: Postdoctoral position in Nantes
by Paolo Lisca 02 Mar '26

02 Mar '26

Condivido annuncio di posizione post-doc. Paolo Lisca ________________________________ From: Fabio Gironella <fabio.gironella(a)cnrs.fr> Sent: Monday, March 2, 2026 02:27 Cc: Fabio Gironella <fabio.gironella(a)univ-nantes.fr> Subject: Postdoctoral position in Nantes Dear friends and colleagues, I am writing to advertise a 1-year postdoc position at the Laboratoire de Mathématiques Jean Leray at Nantes Université. The position is in the context of the ANR project SiSyFo. The ideal candidate will have expertise in the area of symplectic geometry, understood in a broad sense. A detailed knowledge of pseudo-holomorphic curves and/or Floer theory is a plus. Familiarity with foliation theory and/or Poisson geometry is also welcome, but not necessary. The research team to which the postdoc will belong counts several experts with interests in / related to symplectic geometry: Erwan Brugallé, Baptiste Chantraine, Vincent Colin, Marco Golla, Stephane Guillermou, François Laudenbach, Rémi Leclercq, and myself. The position also comes with funding for research related travel and activities. The suggested starting date is 1rst September 2026. A later start of the contract, by the end of 2026 at most, can also be agreed upon. The application procedure is at this page: https://emploi.cnrs.fr/Offres/CDD/UMR6629-FABGIR-002/Default.aspx?lang=EN<https://emploi.cnrs.fr/Offres/CDD/UMR6629-FABGIR-002/Default.aspx> . (Also accessible from my homepage https://fabiogironella.com/ ) The application deadline is (for the moment) set for 22/03/2026 at 23:59 CET. For any questions (including about the application procedure), you can reach out to me at fabio.gironella(a)cnrs.fr<mailto:fabio.gironella@cnrs.fr> . Please feel free to forward this announcement to any potential candidate. Best regards, Fabio Gironella

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