- Geometria_Pisa - Mailing list — Dipartimento di Matematica, UniPI

Reading course su omologia di Heegaard Floer
by Filippo Bianchi 26 Nov '21

26 Nov '21

Cari tutti, care tutte, Con altri dottorandi di Pisa stiamo organizzando un reading course sull'omologia di Heegaard Floer o una delle sue varianti, ad esempio la "grid homology" per nodi e link. Chiunque fosse interessato a partecipare può rispondere a questa mail nei prossimi giorni, in modo che possiamo incontrarci la prossima settimana per definire con più precisione l'argomento da trattare, le fonti da seguire ed il periodo in cui cominciare le letture. Saluti, a presto Filippo Bianchi

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Fwd: [Personale.docente.dm] Assegni di ricerca - pubblicazione bando
by Bruno Martelli 25 Nov '21

25 Nov '21

Segnalo due assegni biennali presso il nostro dipartimento, aperti a tutti i settori della matematica. Bruno Martelli ---------- Forwarded message --------- From: Matteo Novaga <matteo.novaga(a)unipi.it> Date: Thu, Nov 25, 2021 at 7:59 AM Subject: [Personale.docente.dm] Assegni di ricerca - pubblicazione bando To: personale.docente(a)dm.unipi.it <personale.docente(a)dm.unipi.it> Cc: Cristina Lossi <cristina.lossi(a)unipi.it>, Simona Guidotti < simona.guidotti(a)unipi.it> Buongiorno, segnalo, chiedendo di darne ampia diffusione, il bando per due assegni di ricerca in Matematica, consultabile alla pagina https://bandi.unipi.it/public/Bandi/Detail/1cd16e96-3687-4359-a51b-99a90106… Il termine per la presentazione delle domande è il 24 dicembre alle ore 13. Saluti, Matteo

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Seminario di Combinatoria, Teoria di Lie e Topologia - OGGI - Kyoji Saito
by Francesco Sala 25 Nov '21

25 Nov '21

Carə tuttə, Vi scrivo per ricordarvi che OGGI vi sarà un seminario in presenza per il ciclo di seminari "Seminario di Combinatoria, Teoria di Lie e Topologia” di Pisa. Il seminario si svolgerà in Aula Magna dalle 15 alle 17 (il formato sarà 45min + 45min, con una breve pausa in mezzo). L'oratore è Kyoji Saito (Kavli IPMU, Tokyo). — Titolo: Elliptic Artin Monoids and Higher Homotopy Groups Abstract: A half century ago when simply elliptic singularity was introduced, it was a natural question whether its discriminant complement is a K(π, 1) space. At that time, Fulvio Lazzeri suggested a possibility of existence of a non-trivial π2 class by a heuristic argument on the real discriminant complement. In the present talk, I approach this problem from elliptic Artin monoids, where the monoid is defined by generalizing the classical Artin braid relations to the new relations, called elliptic braid relations, defined on elliptic diagrams. Contraly to the classical Artin monoids, the elliptic Artin monoids are not cancellative and their natural homomorphisms to elliptic Artin groups (=the fundamental groups of the elliptic discriminant complements) are not injective (except for rank 1 case). This fact leads to me to a construction of π2-classes in the complement of the discriminant. We conjecture that they are non-vanishing. Then, we reformulate the classical K(π, 1)-conjecture for complements of discriminants, whether the discriminant complements are homotopic to classifying spaces associated to the elliptic Artin monoids. — (Qualora pensiate di venire, per aiutarmi nella stesura del documento di tracciamento, vi prego di iscrivervi qui) Vi prego di inoltrare questo messaggio a tutti coloro che ritenete possano essere interessati. Sperando di vedervi numerosi, vi mando i miei saluti, Francesco

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Seminario di Combinatoria, Teoria di Lie e Topologia - 25 Novembre 2021 - Kyoji Saito
by Francesco Sala 22 Nov '21

22 Nov '21

Carə tuttə, Vi scrivo per annunciarvi che questo giovedì vi sarà un seminario in presenza per il ciclo di seminari "Seminario di Combinatoria, Teoria di Lie e Topologia” di Pisa. Il seminario si svolgerà in Aula Magna dalle 15 alle 17 (con una breve pausa in mezzo). L'oratore è Kyoji Saito (Kavli IPMU, Tokyo). — Titolo: Elliptic Artin Monoids and Higher Homotopy Groups Abstract: A half century ago when simply elliptic singularity was introduced, it was a natural question whether its discriminant complement is a K(π, 1) space. At that time, Fulvio Lazzeri suggested a possibility of existence of a non-trivial π2 class by a heuristic argument on the real discriminant complement. In the present talk, I approach this problem from elliptic Artin monoids, where the monoid is defined by generalizing the classical Artin braid relations to the new relations, called elliptic braid relations, defined on elliptic diagrams. Contraly to the classical Artin monoids, the elliptic Artin monoids are not cancellative and their natural homomorphisms to elliptic Artin groups (=the fundamental groups of the elliptic discriminant complements) are not injective (except for rank 1 case). This fact leads to me to a construction of π2-classes in the complement of the discriminant. We conjecture that they are non-vanishing. Then, we reformulate the classical K(π, 1)-conjecture for complements of discriminants, whether the discriminant complements are homotopic to classifying spaces associated to the elliptic Artin monoids. — (Qualora pensiate di venire, per aiutarmi nella stesura del documento di tracciamento, vi prego di iscrivervi qui) Vi prego di inoltrare questo messaggio a tutti coloro che ritenete possano essere interessati. Sperando di vedervi numerosi, vi mando i miei saluti, Francesco

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Fwd: [gdrtresses] 4-manifolds: from above and below
by Bruno Martelli 13 Nov '21

13 Nov '21

Conference on 4-manifolds at Luminy. Bruno ---------- Forwarded message --------- From: wagner(a)imj-prg.fr <wagner(a)imj-prg.fr> Date: Fri, Nov 12, 2021 at 5:41 PM Subject: [gdrtresses] 4-manifolds: from above and below To: gdrtresses(a)listes.math.cnrs.fr <gdrtresses(a)listes.math.cnrs.fr> Dear all, Together with Ana Lecuona and Stefan Friedl, we are organising a conference entitled "4-manifolds: from above and below" that will take place during the week of 12-16 September 2022 at the CIRM in Luminy, not far from Marseille: https://conferences.cirm-math.fr/2593.html We would be grateful if you could share this announcement with your students, postdocs, and topology-inclined colleagues! We hope to see you there, or at some point in the near future! Ana, Anthony and Stefan

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Master a Marsiglia
by Bruno Martelli 11 Nov '21

11 Nov '21

Segnalo un programma di Master in geometria e topologia a Marsiglia, per l'anno prossimo (allegato). Può essere inoltrato a eventuali studenti interessati. Bruno

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Fwd: Postdoc at Sydney
by Bruno Martelli 05 Nov '21

05 Nov '21

Post-doc in geometric topology a Sidney ---------- Forwarded message --------- From: Stephan Tillmann <stephan.tillmann(a)sydney.edu.au> Date: Fri, Nov 5, 2021 at 3:45 AM Subject: Postdoc at Sydney To: tillus <stephan.tillmann(a)sydney.edu.au> Dear colleague, I'm advertising a 2-year research-only position in Geometry & Topology at the Sydney Mathematical Research Institute at the University of Sydney. Could you please pass this message on to any students or others who might be interested? The closing date for applications is 30 November 2021. Details can be found here: https://www.mathjobs.org/jobs/list/18709 Best regards, Stephan =============================================== Stephan 'Tillus' Tillmann Professor of Geometric Topology School of Mathematics and Statistics F07 The University of Sydney NSW 2006 Australia Deputy Director Australian Mathematical Sciences Institute The University of Melbourne, Australia e-mail: stephan.tillmann(a)sydney.edu.au web: http://www.maths.usyd.edu.au/u/tillmann phone: +61-2-9351-2005 ===============================================

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Fwd: ERC/MSCA Replacement Calls by SNSF
by Stefano Riolo 21 Oct '21

21 Oct '21

Borse post-doc (e altro) in Svizzera Saluti, Stefano -------- Messaggio Inoltrato -------- Due to the participation status of Switzerland as non-associated high-income third country in all 2021-calls for projects of the European Framework Programme for Research and Innovation “Horizon Europe”, Swiss research entities have been excluded from the /ERC Advanced Grants/2021 and the /MSCA European Fellowships 2021/which have now been replaced by two national transitional measures: /*SNSF Advanced Grants*/ The SNSF Advanced Grants <https://www.snf.ch/en/SSHTwon4N4v9R79P/funding/horizon-europe-advanced-gran…> are aimed at leading researchers who wish to conduct innovative, high-risk research in Switzerland. Proposals will be evaluated in two stages by panels of international experts, similar to the panels established for the ERC Advanced Grants Call opened: 1 October 2021 Mandatory pre-registration: 1 November 2021 Submission deadline: 1^December 2021 // /*SNSF Swiss Postdoctoral Fellowships*/ The Swiss Postdoctoral Fellowships <https://www.snf.ch/en/m1NtWp4nTELQixlu/funding/horizon-europe-swiss-postdoc…> (SPF) are research fellowships in all scientific domains with free choice of topic, addressed to researchers who have not resided or carried out their main activity (work, studies, etc.) in Switzerland for more than 12 months in the 36 months immediately prior to the submission deadline. Call opened: 15 October 2021 Mandatory pre-registration: 15 November 2021 Submission deadline: 15^December 2021 Please contact us <mailto:euresearch@unige.ch> for up-to-date information andadvice. Yours, Sincerely. Alex Waehry, Head European/international research support Manuela Motta, Research advisor in charge of ERC/SNSF-AdG Daniel Fuhrer, Research advisor in charge of MSCA/SNSF-SPF

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Seminario di Combinatoria, Teoria di Lie e Topologia - Michele D'Adderio - 21 Ottobre 2021
by Francesco Sala 19 Oct '21

19 Oct '21

Carə tuttə, Vi scrivo per annunciarvi che questo giovedì vi sarà un seminario in presenza per il ciclo di seminari "Seminario di Combinatoria, Teoria di Lie e Topologia” di Pisa. Il seminario si svolgerà in Aula Magna dalle 15 alle 16. L'oratore è Michele D'Adderio. — Titolo: Partial and global representations of finite groups Abstract: The notions of partial actions and partial representations have been extensively studied in several algebraic contexts in the last 25 years. In this talk, we introduce these concepts and give a short overview of the results known for finite groups. We will briefly show how this theory extends naturally to the classical global theory, in particular in the important case of the symmetric group. This is joint work with William Hautekiet, Paolo Saracco, and Joost Vercruysse. — (Qualora pensiate di venire, per aiutarmi nella stesura del documento di tracciamento, vi prego di iscrivervi qui) Vi prego di inoltrare questo messaggio a tutti coloro che ritenete possano essere interessati. Sperando di vedervi numerosi, vi mando i miei saluti, Francesco

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Seminario di geometria algebrica e aritmetica di Pisa, 13 ottobre
by Tamas Szamuely 12 Oct '21

12 Oct '21

Cari tutti, il seminario di geometria algebrica e aritmetica riprende in presenza! Prossimo seminario: Mercoledì 13 ottobre 2021, Dipartimento di matematica, Aula Magna 16:00--17:00 Gregory Pearlstein (Pisa): Archimedean height pairings for higher cycles By the work of Richard Hain, the archimedean height pairing on ordinary algebraic cycles can be interpreted as an invariant of an associated mixed Hodge structure. In this talk, we will present a similar construction for higher cycles in the Bloch complex. Families of higher cycles produce admissible variations of mixed Hodge structure. We will describe the asymptotic behavior of the height pairing in the case where the associated variation of mixed Hodge structure is Hodge-Tate. This is joint work with J. Burgos Gil and S. Goswami. Homepage del seminario: http://pagine.dm.unipi.it/tamas/saga.html Migliori saluti, Tamás Szamuely

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