Geometria_Pisa

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Seminario di geometria oggi
by Filippo Bianchi 06 Apr '23

06 Apr '23

Buonasera, Scusandoci per il poco preavviso, annunciamo il seminario di geometria di oggi. Ricordiamo che l'elenco completo dei seminari si trova a questa pagina<https://www.dm.unipi.it/categoria-evento/geometry-seminar/>. A presto, Filippo, Alice e Giuseppe ----- 06-Apr-2023 - 11:00 Sala Seminari (Dip. Matematica) Instanton Floer homology of almost-rational plumbings Antonio Alfieri UQAM Plumbed three-manifolds are those three-manifolds that can be be realized as links of isolated complex surface singularities. Inspired by Heegaard Floer theory Nemethi introduced a combinatorial invariant of complex surface singularities (lattice cohomology) that was recently proved to be is isomorphic to Heegaard Floer homology. I will give an introduction to lattice cohomology, and expose some work in collaboration with John Baldwin, Irving Dai, and Steven Sivek showing that the lattice cohomology of an almost-rational singularity is isomorphic to the framed Instanton Floer homology of its link.

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Fwd: Conference "Geometric Topology, Art, and Science" in Modena and Reggio Emilia (June 8-10, 2023)
by Bruno Martelli 06 Apr '23

06 Apr '23

---------- Forwarded message --------- Da: Maria Rita CASALI <mariarita.casali(a)unimore.it> Date: Mer 5 Apr 2023, 19:08 Subject: Conference "Geometric Topology, Art, and Science" in Modena and Reggio Emilia (June 8-10, 2023) To: Maria Rita CASALI <casali(a)unimore.it> Dear Colleagues, we are pleased to announce the conference *Geometric Topology, Art, and Science* to be held in Reggio Emilia (Italy) on June 9-10, 2023, with a pre-meeting in Modena on June 8, 2023. The conference is jointly organised by the Department of Physics, Informatics and Mathematics (FIM) and the Department of Sciences and Methods for Engineering (DISMI) of the University of Modena and Reggio Emilia, on the occasion of 70th birthday of Luigi Grasselli, full professor of Geometry at DISMI. The conference focuses on recent advances in Geometric Topology, with a particular attention to combinatorial descriptions of 3- and 4-manifolds (branched coverings, knots and braids, trisections, colored graphs, etc…), as well as to the interactions with other disciplines, ranging from physics (with the theory of *random tensors*) to geometrical aspects in classical and contemporary art. Confirmed speakers include • Bruno Benedetti (University of Miami) • Alessia Cattabriga (University of Bologna) • Antonio Costa (UNED, Madrid) • Massimo Ferri (University of Bologna) • Luca Lionni (University of Heidelberg) • Josè Maria Montesinos Amilibia (Real Academia de Ciencias Exactas, Físicas y Naturales de España) • Daniele Zuddas (University of Trieste) The conference will also host a poster session. During the preliminary event (which will take place in Modena on June 8 afternoon, at the Department FIM) young researchers who intend to present a poster will be invited to give short talks on their own research. In this occasion, we foresee ample room for discussion and informal interaction in order to facilitate the scientific exchange between participants. More information and the detailed programme can be found at the webpage https://sites.google.com/view/gras70/ Participants are requested to register at https://sites.google.com/view/gras70/registration and fill the related form. No registration fee is required. The deadline for talk/poster submission and registration is April 30, 2023. A limited amount of funding is available for early-career researchers intending to participate in the session of talks and to present posters. Application for funding can be made through the registration form. Finally, we would like to ask you to forward the announcement to any of your colleagues who might be interested. We look forward to meeting you at the conference. *Maria Rita Casali* *(on behalf of the Organisers)*

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Fwd: Conference: Probability and Geometry in, on and of non-Euclidian spaces at CIRM
by Bruno Martelli 04 Apr '23

04 Apr '23

---------- Forwarded message --------- From: Bram Petri <brampetri(a)gmail.com> Date: Mon, Apr 3, 2023 at 3:21 PM Subject: Conference: Probability and Geometry in, on and of non-Euclidian spaces at CIRM To: Bram Petri <brampetri(a)gmail.com> Dear all, I'm writing to advertise a conference at CIRM that we're organizing with Nicolas Curien, Elba Garcia-Failde and Arvind SIngh. It's called " *Probability** and Geometry in, on and of non-Euclidian spaces*". For more information, see here: https://conferences.cirm-math.fr/2897.html <https://es.sonicurlprotection-fra.com/click?PV=2&MSGID=20230403132100014094…> We have some funding available for accommodation, but most probably not for travel. If you know anyone who might be interested, please don't hesitate to spread the word! Best wishes, Bram

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I: Postdoc position in Symplectic Topology at IMPA
by Paolo Lisca 04 Apr '23

04 Apr '23

Inoltro annuncio di posizione post-doc in topologia simplettica. Buona giornata, Paolo Lisca -------------------- Da: Vinicius G. B. Ramos <vgbramos(a)impa.br> Oggetto: Postdoc position in Symplectic Topology at IMPA Dear colleagues, We invite applications for a postdoctoral position in symplectic topology at IMPA in Rio de Janeiro. The starting date is between 1 October 2023 and 31 March 2024. The duration is one year with a possible extension to a second year. Candidates should email Vinicius Ramos (vgbramos(a)impa.br<mailto:vgbramos@impa.br>) as soon as possible including the following documents: 1) CV including a list of publications 2) Research statement 3) List of references Best regards, Vinicius Ramos

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Seminario di geometria domani
by Filippo Bianchi 29 Mar '23

29 Mar '23

Buonasera, Vi annunciamo il seminario di geometria di domani. Ricordiamo che l'elenco completo dei seminari si trova a questa pagina<https://www.dm.unipi.it/categoria-evento/geometry-seminar/>. A presto, Filippo, Alice e Giuseppe ----- 30-Mar-2023 - 11:00 Sala Seminari (Dip. Matematica) Linear programming for hyperbolic surfaces Bram Petri IMJ Paris I will speak about extremal problems in the (spectral) geometry of hyperbolic surfaces and how linear programming methods based on the Selberg trace formula can help. I will not assume any familiarity with hyperbolic geometry or the Selberg trace formula. This is joint work with Maxime Fortier Bourque.

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Fwd: Summer school "Involutions in algebraic geometry and gauge theory", Nantes Université, 2023 May 30-June 2
by Bruno Martelli 27 Mar '23

27 Mar '23

Inoltro info su summer school Bruno ---------- Forwarded message --------- From: Erwan Brugallé <Erwan.Brugalle(a)math.cnrs.fr> Date: Mon, Mar 27, 2023 at 7:32 AM Subject: Summer school "Involutions in algebraic geometry and gauge theory", Nantes Université, 2023 May 30-June 2 To: Marco GOLLA <Marco.Golla(a)univ-nantes.fr>, Erwan Brugallé < Erwan.Brugalle(a)math.cnrs.fr> ################## # Second announcement ################## Dear colleagues, We are organising a summer school on "Involutions in algebraic geometry and gauge theory" at the University of Nantes (May 30-June 2, 2023). There will be two mini-courses, one by Matilde Manzaroli (Tübingen University) on real algebraic curves and one by Christopher Scaduto (University of Miami) on 4-manifolds and involutions. We expect to have some contributed talks by young participants. Master students are particularly encouraged to apply. The schedule will be pretty light, in order to allow the participants ample time to work on the material covered in the lectures. Some familiarity with knot theory and with (very basic) complex projective geometry will be assumed. You can find more information on the webpage of the school: https://es.sonicurlprotection-fra.com/click?PV=2&MSGID=20230327053200063942… The registration page is here: https://es.sonicurlprotection-fra.com/click?PV=2&MSGID=20230327053200063942… and the registration deadline is March 30, 2022. Could you pass this information on to any PhD student/postdoc/motivated Master student who might be interested in attending? Limited funding is available for Master students and for contributed speakers. However, should funding be an insurmountable issue, do ask them to get in touch (math.summer-school (at) univ-nantes.fr). Thank you! The organisers, Erwan Brugallé and Marco Golla

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Seminari di Geometria
by Bruno Martelli 10 Mar '23

10 Mar '23

Buondì, Inoltro un avviso riguardante i prossimi seminari di geometria, che per qualche motivo tecnico non è comparso nella mailing list. Ne approfitto per ringraziare gli organizzatori. Bruno ---- Carə tuttə, Siamo felici di annunciare che dal 30 marzo ripartiranno i Seminari di geometria. Per questo semestre, i talk si terranno il giovedì mattina alle 11.00 in Aula Seminari. I primi incontri saranno i seguenti: 30 Marzo - *Bram Petri* (Institut de Mathématiques de Jussieu), *Linear programming for hyperbolic surfaces* 06 Aprile - *Antonio Alfieri* (Université du Québec à Montréal), *TBA* 13 Aprile - *Raphael Zentner* (Durham University),* TBA* Maggiori informazioni saranno caricate sulla pagina del dipartimento <https://www.dm.unipi.it/categoria-evento/geometry-seminar/>. Vi aspettiamo! Alice Merz Filippo Bianchi Giuseppe Bargagnati

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Minicorsi Baby Geometri
by Giovanni Italiano 10 Feb '23

10 Feb '23

Buongiorno, vorremmo segnalare due minicorsi organizzati dai Baby Geometri, ovvero Alessandro Sisto (Heriot-Watt University) Mapping Class Groups and relatives: hierarchically hyperbolic spaces. Lukas Lewark (University of Regensburg) An introduction to Khovanov homology and its applications. I minicorsi si svolgeranno nei seguenti orari: Lewark: 27 Febbraio 11-13, 28 Febbraio 11-13, 1 Marzo 11-13, 3 Marzo 9-11, sempre in Aula Riunioni Sisto: 1 Marzo 14-16, 2 Marzo 11-13, 3 Marzo 14-16 sempre in Aula Riunioni Invitiamo eventuali interessati (ad uno dei minicorsi o ad entrambi) a rispondere a questa mail; per motivi organizzativi, chiediamo di farci sapere entro martedì 14 Febbraio. A presto, Alice, Filippo, Giovanni e Giuseppe

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3 giorni di geometria e topologia a Bologna a marzo
by Stefano Riolo 11 Jan '23

11 Jan '23

Dear all, we are pleased to announce the following workshops in Bologna: ----------------------------------------- 1) Manifolds and groups in Bologna (Workshop funded by GNSAGA (INdAM)) Date: Wednesday, Mar 22, 2023 -- Thursday, Mar 23, 2023 Place: Bologna - Dipartimento di Matematica The aim of this workshop is to bring together young researchers working in low-dimensional topology and geometric group theory in a broad sense. The event consists in main lectures and shorter talks in order to give the opportunity to young researchers to present their own research. The workshop is hosted by the University of Bologna and it is sponsored by the GNSAGA (INdAM). After the workshop, the University of Bologna will host the Attività presso l’Unità di Ricerca INdAM “Non-positive curvature in manifolds and groups” (March 24, 2023), sponsored by INdAM. This one-day event will consist in four main lectures given by international speakers. Main speakers: Gianluca Faraco (Università di Milano Bicocca) Francesco Fournier Facio (ETH Zürich) Alessio Savini (Univeristé de Genève) Junior speakers: Federica Bertolotti (SNS Pisa) Viola Giovannini (Université du Luxembourg) Giovanni Italiano (SNS Pisa) Bianca Marchionna (Università di Milano Bicocca) Matteo Migliorini (SNS Pisa) Francesco Milizia (SNS Pisa) Diego Santoro (SNS Pisa) Matteo Tarocchi (Università di Pavia) Enrico Trebeschi (Università di Pavia) Organizers Ludovico Battista, Stefano Francaviglia, Marco Moraschini, Stefano Riolo (Alma Mater Studiorum Università di Bologna) and Filippo Sarti (Università di Torino) website: https://math.unibo.it/en/events/manifolds-and-groups-in-bologna ----------------------------------------- 2) Non-positive curvature in manifolds and groups (Attività presso l'Unità di Ricerca INdAM di Bologna) Date: Friday, Mar 24, 2023 Place: Bologna - Dipartimento di Matematica The aim of this event is to bring together researchers working in geometric topology and geometric group theory, mainly focusing on non-positive curvature phenomena. It is hosted by the University of Bologna and sponsored by INdAM. Before this event, the University of Bologna will host the workshop “Manifolds and groups in Bologna” (March 22-23, 2023, sponsored by GNSAGA — INdAM ), on the same research themes, particularly addressed to the participation and interaction of young researchers. Speakers: Caterina Campagnolo (UAM - Universidad Autónoma de Madrid) Irene Pasquinelli (University of Bristol) Andrea Seppi (Université Grenoble Alpes) Leone Slavich (Università di Pavia) Organizers Pierluigi Contucci (direttore dell'UdR INdAM di Bologna), Ludovico Battista, Stefano Francaviglia, Marco Moraschini, Stefano Riolo (Alma Mater Studiorum Università di Bologna) e Filippo Sarti (Università di Torino) website: https://matematica.unibo.it/it/eventi/udr-indam-bo-2023-03-24 We are looking forward to seeing you in Bologna. Best regards, The organizers

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[Indico] James Lewis, The Complexity of Higher Chow Groups, 30/11/2022, 16:30 Europe/Rome
by francesco.sala＠unipi.it 28 Nov '22

28 Nov '22

Title: The Complexity of Higher Chow Groups, Speaker(s): James Lewis, University of Alberta, Date and time: 30 Nov 2022, 16:30 (Europe/Rome), Lecture series: Algebraic and Arithmetic Geometry Seminar, Venue: Department of Mathematics (Aula Magna). You can access the full event here: https://events.dm.unipi.it/e/127 Abstract -------- Let $X/{\mathbb C}$ be a smooth projective variety. We consider two integral invariants, one of which is the level of the Hodge cohomology algebra $H^*(X,{\mathbb C})$ and the other involving the complexity of the higher Chow groups ${\rm CH}^*(X,m;{\mathbb Q})$ for $m\geq 0$. We conjecture that these two invariants are the same and accordingly provide some strong evidence in support of this. -- Indico :: Email Notifier https://events.dm.unipi.it/e/127

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