- Geometria_Pisa - Mailing list — Dipartimento di Matematica, UniPI

seminario domani
by Bruno Martelli 28 Oct '15

28 Oct '15

buondì, mi scuso per gli annunci multipli... vorrei informarvi del seminario di geometria di domani. Seguono dettagli. a presto, Bruno ---- SEMINARIO DI GEOMETRIA 29-Oct-2015 - 16:00 Sala Seminari (Dip. Matematica) "Bordi all'infinito di filling di Dehn algebrici" Alessandro Sisto (ETH Zurich) Abstract: Il filling di Dehn è un importante metodo per costruire 3-varietà iperboliche chiuse a partire da 3-varietà iperboliche di volume finito. Questa costruzione ha un analogo algebrico per gruppi relativamente iperbolici, e ne studieremo l'effetto sul bordo all'infinito del gruppo. Vedremo quindi come questo permette di dimostrare che due versioni della congettura di Cannon sono equivalenti. Basato su una collaborazione con D. Groves e J. Manning.

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[GeCo GeDi seminar] Symplectic invariants of Hermitian symmetric spaces
by daniele.angella＠gmail.com 21 Sep '15

21 Sep '15

Symplectic invariants of Hermitian symmetric spaces ----------------------------------------- http://gecogedi.dimai.unifi.it/seminar/374/ Date: Tuesday, Sep 22, 2015 Time: 15:00 Place: Aula Bianchi scienze, SNS, Pisa Speaker: Fabio Zuddas GR14 SNS "Geometry of non Kähler manifolds" Abstract. The Gromov width of a symplectic $n$-dimensional manifold $M$ gives the sup of the $r>0$ such that there exists a symplectic embedding of the open ball of radius $r$ of the euclidean $n$-dimensional space (endowed with the standard symplectic form) into $M$.| In this talk we compute the Gromov width of Hermitian symmetric spaces of compact and non-compact type. The theorems we present are contained in a paper joint with A.Loi and R.Mossa recently accepted for publication in the Journal of Symplectic Geometry, and generalize analogous results proved by Guangcun Lu for Grassmannians and their products.

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[Fwd: Another call for tenure-track associate prof. position in Geometry in Rome]
by frigerio＠dm.unipi.it 24 Aug '15

24 Aug '15

Ricevo e inoltro l'annuncio di posto RTD B presso l'Università di Roma Sapienza. Roberto -------------------------- Messaggio originale --------------------------- Oggetto: Another call for tenure-track associate prof. position in Geometry in Rome Da: "Mondello, Gabriele" <mondello(a)mat.uniroma1.it> Data: Lun, 24 Agosto 2015 2:15 pm A: undisclosed-recipients:; -------------------------------------------------------------------------- Dear Colleague, I am writing to advertise the following call for a new RTD-B (tenure-track associate professor) position at the Department of Mathematics of "Sapienza" Università di Roma. Candidates are required to have at least 3 years of experience as post-doc researchers and at least 6 publications. Deadline for application: 17 September 2015. Details can be found following the link below (in Italian): - Procedura selettiva di chiamata per 2 posti di ricercatore a tempo determinato, di tipologia B, presso il dipartimento di Matematica - settore s/d MAT/07 - settore conc. 01/A4 - settore s/d MAT/03 - settore conc. 01/A2 - pubblicato sulla Gazzetta Ufficiale IV serie speciale n. 63 del 18/08/2015 - Bando <http://www2.uniroma1.it/organizzazione/amministrazione/ripartizionepersonal…> [290KB] - Allegati <http://www2.uniroma1.it/organizzazione/amministrazione/ripartizionepersonal…> [MAT/03 means "geometry", 01/A2 means "algebra and geometry". The call speaks about two positions, but the other one MAT/07-01/A4 is in Mathematical physics.] Link to the call: http://www2.uniroma1.it/organizzazione/amministrazione/ripartizionepersonal… Link to the attachments: http://www2.uniroma1.it/organizzazione/amministrazione/ripartizionepersonal… Please, feel free to forward the present announcement to anyone who might be interested. Thank you! Best regards, Gabriele Mondello -- ------------------------------- *Gabriele Mondello* Dipartimento di Matematica "Sapienza" Università di Roma Piazzale Aldo Moro 5 00185 Roma - Italy Tel: (+39) 06 4991 3283 Email: mondello(a)mat.uniroma1.it -------------------------------

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seminario oggi
by Bruno Martelli 15 Jul '15

15 Jul '15

buondì, vi segnalo il seminario di geometria di oggi, alle 16 come sempre, ma in aula magna. a presto, Bruno ---- 15-Jul-2015 - 16:00 Aula Magna (Dip. Matematica) Marco Castronovo Twisted Whitney towers and concordance of links Abstract: The Whitney trick can be used to remove intersection points in generic immersed concordances of links. Due to the fact that Whitney disks may intersect the concordance and each other, sometimes one only trades old with new intersections and these organize in "towers" that admit a combinatorial description in terms of trees modulo some relations. These relations show up in other areas of topology like those of quantum and finite type invariants. For example, there is a connection with Milnor invariants and the Kontsevich integral. Some subtelties regarding framing of Whitney disks suggest that a "twisted" version of these towers should be related to new concordance invariants with values in powers of Z/2 generalizing the classical Arf invariant of knots.

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posto da ricercatore di tipo A
by Bruno Martelli 13 Jul '15

13 Jul '15

buondì, mi scuso per eventuali duplicati, ma è meglio abbondare: è aperto un bando come ricercatore di tipo A in algebra e geometria a Pisa, e scade il 30 luglio: http://www.unipi.it/ateneo/bandi/ricercat/ricercator/Ricercator/index.htm Vi prego di darne la più ampia diffusione ciao Bruno

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[GeCo GeDi seminar] E. Calabi's diastasis function
by daniele.angella＠gmail.com 12 Jul '15

12 Jul '15

E. Calabi's diastasis function ----------------------------------------- http://gecogedi.dimai.unifi.it/seminar/362/ Date: Monday, Jul 13, 2015 Time: 15:00 Place: Aula Bianchi scienze, SNS, Pisa Speaker: Michela Zedda GR14 SNS "Geometry of non Kähler manifolds" Abstract. The diastasis function is a powerful tool introduced by E. Calabi to study the existence of holomorphic and isometric immersions of Kaehler manifolds into complex space forms. The criterion Calabi provides to determine whether or not a Kaehler manifold admits such an immersion is theoretically impeccable but difficult to be applied and many questions are still open. The aim of this talk is to introduce the diastasis function and to give an overview of the open problems related.

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[GeCo GeDi seminar] A gentle introduction to lck geometry
by daniele.angella＠gmail.com 09 Jul '15

09 Jul '15

A gentle introduction to lck geometry ----------------------------------------- http://gecogedi.dimai.unifi.it/seminar/356/ Date: Friday, Jul 10, 2015 Time: 15:00 Place: Aula Bianchi scienze, SNS, Pisa Speaker: Victor Vuletescu GR14 SNS "Geometry of non Kähler manifolds" Abstract. The aim of the talk is to give a short report on Locally Conformally Kahler (LCK, for short) manifolds. Some recent results in the area will be detailed, including some work in progress with L. Ornea and M. Verbitsky.

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seminari di geometria complessa a Pisa
by Daniele Angella 07 Jul '15

07 Jul '15

Cari tutti, vi segnalo/ricordo tre seminari di geometria complessa in programma nelle prossime due settimane a Pisa: - venerdi' 10 luglio, 15:00: Victor Vuletescu: "A gentle introduction to lck geometry" - lunedi' 13 luglio, 15:00: Michela Zedda: "E. Calabi's diastasis function" - venerdi' 17 luglio, 15:00: Chengjian Yao: "Singular Kahler-Einstein metrics on Q-Fano varieties" Tutti i seminari si terranno alle 15:00 nell'aula Bianchi-scienze della Scuola Normale. Trovate gli abstract su: http://gecogedi.dimai.unifi.it/seminars/ Un saluto, Daniele

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seminario mercoledì
by Bruno Martelli 06 Jul '15

06 Jul '15

buondì, vi annuncio il seminario di geometria di mercoledì prossimo (dopodomani). a presto, Bruno ------ 08-Jul-2015 - 16:00 Sala Seminari (Dip. Matematica) Kyle Larson (Austin, Texas) Torus surgery in the 4-sphere I will introduce the operation of torus surgery in the 4-sphere, and describe some recent results concerning which 4-manifolds can be produced in this way and the uniqueness of such descriptions. As a motivation I will discuss analogous results and problems about Dehn surgery on knots in the 3-sphere. I will also discuss some applications to embedding 3-manifolds into 4-manifolds.

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seminario domani
by Bruno Martelli 30 Jun '15

30 Jun '15

buondì, vi annuncio il seminario di geometria di domani. Per colpa mia titolo e abstract non erano presenti nel notiziario di venerdì. a presto, Bruno ----- 01-Jul-2015 - 16:00 Sala Seminari (Dip. Matematica) Marco Golla Twisting (Heegaard Floer) correction terms Correction terms in Heegaard Floer homology are rational numbers associated to rational homology spheres, introduced by Ozsváth and Szabó (inspired by the work of Frøyshov in Seiberg-Witten theory). These invariants have been used to study the topology of 4-manifolds whose boundary is a rational homology sphere. We use twisted coefficients to generalise this construction to arbitrary 3-manifolds, and give some applications. This is joint work with Stefan Behrens.

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