Geometria_Pisa

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770 discussions

seminario mercoledì
by Bruno Martelli 04 Mar '13

04 Mar '13

buondì, questo mercoledì torna il consueto seminario di geometria, alle 14.30 in aula seminari. a presto, Bruno ------ MERCOLEDI' 6 MARZO 2013 SEMINARI DI GEOMETRIA 14:30-15:30, Sala Seminari (Dip. Matematica) Bounded cohomology and simplicial volume of generalized Dehn fillings Cristina Pagliantini (Università di Regensburg) Abstract: Bounded cohomology was developed by Gromov in 1982 in order to study the simplicial volume, a homotopy invariant of compact manifolds. We present isometric properties of bounded cohomology and as an application we provide an estimate of simplicial volume of generalized Dehn fillings. This is a joint work with M.Bucher, M.Burger, A.Iozzi, R.Frigerio and M.B.Pozzetti.

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[Fwd: Ciclo "Baby geometri" - Promemoria seminario di Samuele Mongodi]
by Daniele Angella 04 Mar '13

04 Mar '13

Ciao a tutti, vi ricordiamo che domani Martedi' 5 Marzo, alle 11:30 - 12:30 in Sala Seminari, ci sarà il seminario dei baby-geometri: - speaker: Samuele Mongodi (Scuola Normale Superiore di Pisa) - Titolo: Flusso di Ricci e solitoni - Abstract: Introdurremo brevemente il flusso di Ricci, cercando di illustrare il tipo di problematiche per cui è stato concepito e studiato (in primis, la classificazione topologica delle 3-varietà prevista dalla congettura di geometrizzazione di Thurston) e le motivazioni che hanno mosso questo studio (ad esempio, la somiglianza con l'equazione del calore). Passeremo poi a considerare soluzioni particolari (autosimili) del flusso di Ricci, i cosiddetti solitoni, dando vari esempi e cercando di fare il punto sui risultati di classificazione noti per essi. Tempo permettendo, accenneremo ad alcune problematiche più recenti riguardanti i solitoni e generalizzazioni del flusso di Ricci. (Dopo il seminario, offriremo un buffet di dolce e salato) -- Simone (simone.calamai(a)sns.it) Daniele (angella(a)mail.dm.unipi.it) www.dm.unipi.it/cluster-pages/angella/baby-geometri/

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Ciclo "Baby geometri"- Comunicazione seminario di Samuele Mongodi
by Daniele Angella 28 Feb '13

28 Feb '13

Ciao a tutti, il prossimo incontro dei "seminari dei baby geometri" è fissato per - Martedi' 5 Marzo, ore 11:30-12:30, Sala Seminari del Dipartimento di Matematica - speaker: Samuele Mongodi (Scuola Normale Superiore di Pisa) - Titolo: Flusso di Ricci e solitoni (Dopo il seminario, offriremo un buffet di dolce e salato) -- Simone (simone.calamai(a)sns.it) Daniele (angella(a)mail.dm.unipi.it) www.dm.unipi.it/cluster-pages/angella/baby-geometri/

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Fwd: research fellow in geometric topology position in Melbourne
by Bruno Martelli 27 Feb '13

27 Feb '13

Ricevo e inoltro. E' una posizione post-doc in topologia e geometria a Melbourne. Bruno ---------- Forwarded message ---------- From: Craig David Hodgson <craigdh(a)unimelb.edu.au> Date: Wed, Feb 27, 2013 at 11:43 AM Subject: research fellow in geometric topology position in Melbourne To: Craig David Hodgson <craigdh(a)unimelb.edu.au> Cc: Hyam Rubinstein <h.rubinstein(a)ms.unimelb.edu.au>, Stephan Tillmann <tillmann(a)maths.usyd.edu.au> Dear Colleagues, Could you please pass on the following to any students or others who might be interested? We are looking for someone to start in the middle of 2013; the exact starting date is quite flexible. Best Regards, Craig Hodgson, Hyam Rubinstein and Stephan Tillmann ---------------------------------------------------------------------------- RESEARCH FELLOW IN GEOMETRIC TOPOLOGY Department of Mathematics and Statistics University of Melbourne Position no.: 0031009 Employment type: Full-time Fixed Term (Available for 3 years) Campus: Parkville Salary: $75,404 - $80,939 p.a. plus employer superannuation contributions of 9%. This postdoctoral position will conduct research on an Australian Research Council Discovery Project with the Chief Investigators Professor Hyam Rubinstein, Associate Professor Craig Hodgson, and Dr Stephan Tillmann (University of Sydney). The title of the project is “Triangulations in dimensions three and four: discrete and geometric structures”. It is administered by the Universities of Melbourne and Sydney and is funded for the three year period 2013-2015. The successful applicant will undertake research in the areas of low dimensional topology and geometric structures, using techniques of triangulations and normal surfaces. Research will focus on building geometric structures explicitly by solving the hyperbolic gluing equations for triangulations and related topics of angle structures, triangulations and algorithms. Invariants from triangulations of 3-manifolds using quantum topology and triangulations of 4-manifolds will also be research topics. The successful applicant will participate in all aspects of the project, will present research results at seminars and conferences, and will, as part of the research team, write scholarly papers for publication in academic journals. Regular visits to the University of Sydney are required to work with Dr Tillmann during the project. Applicants would be expected to have a PhD in mathematics. A publication record is expected in geometry and topology. More information about the Department and the Geometry and Topology group is available at the website:http://www.ms.unimelb.edu.au Closing date: 18 March 2013 For Position Description, Selection Criteria, and details of how to apply, please visit the website http://jobs.unimelb.edu.au/ and perform a Job Search with keyword 0031009. -------------------------------------------------------------------------------------

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Ciclo "Baby geometri" - Promemoria seminario di Maura Macrì
by Daniele Angella 27 Feb '13

27 Feb '13

Ciao a tutti, vi ricordiamo che domani giovedì 28 febbraio, alle 12:00 - 13:00 in Sala Seminari del Dipartimento di Matematica, ci sarà il seminario dei baby-geometri: - speaker: Maura Macrì (Università di Torino) - Titolo: Formality and symplectic structures of almost abelian solvmanifolds - Abstract: In this talk we want to describe some properties of almost abelian solvmanifolds using minimal models associated to a fibration. In particular we state a necessary and sufficient condition to formality and a method for finding symplectic strucures of this kind of solvmanifolds. (Dopo il seminario, offriremo un buffet di dolce e salato) -- Simone (simone.calamai(a)sns.it) Daniele (angella(a)mail.dm.unipi.it) www.dm.unipi.it/cluster-pages/angella/baby-geometri/

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Ciclo "Baby geometri" - comunicazione seminario Maura Macrì
by Daniele Angella 21 Feb '13

21 Feb '13

---------------------------- Original Message ---------------------------- Subject: Ciclo "Baby geometri" - comunicazione seminario Maura Macrì From: "simone calamai" <simocala(a)gmail.com> Date: Thu, February 21, 2013 11:37 am -------------------------------------------------------------------------- Ciao a tutti, il prossimo incontro dei "seminari dei baby geometri" è fissato per - Giovedi' 28 Febbraio, 12:00-13:00, Sala Seminari del Dip. Mat. - speaker: Maura Macrì (Università di Torino) - Titolo: Formality and symplectic structures of almost abelian solvmanifolds (Dopo il seminario, offriremo un buffet di dolce e salato) -- Simone (simone.calamai(a)sns.it) Daniele (angella(a)mail.dm.unipi.it) www.dm.unipi.it/cluster-pages/angella/baby-geometri/

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seminario oggi
by Bruno Martelli 20 Feb '13

20 Feb '13

buondì, vi ricordo oggi il consueto seminario di geometria alle 14.30. La prossima settimana il seminario salterà per lasciare spazio al workshop "varietà reali e complesse: geometria, topologia e analisi armonica" che si terrà al De Giorgi tra giovedì e domenica (sempre della prossima settimana). a presto, Bruno ---- MERCOLEDI' 20 FEBBRAIO 2013 14:30-15:30, Sala Seminari (Dip. Matematica) SEMINARI DI GEOMETRIA *Exceptional surgeries on alternating knots* Hidetoshi Masai We will report on the complete classification of exceptional surgeries on hyperbolic alternating knots. This work relies heavily on computer, actually we used TSUBAME the supercomputer of Tokyo Institute of Technology. In this talk we will talk about theoretical background and the supercomputer-aided computation. This work is a joint work with Kazuhiro Ichihara.

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[Fwd: Ciclo "Baby geometri" - promemoria seminario Alessio Carrega]
by Daniele Angella 18 Feb '13

18 Feb '13

---------------------------- Original Message ---------------------------- Subject: Ciclo "Baby geometri" - promemoria seminario Alessio Carrega From: "simone calamai" <simocala(a)gmail.com> Date: Mon, February 18, 2013 9:06 am -------------------------------------------------------------------------- Ciao a tutti, vi ricordiamo che domani Martedi' 19 Febbraio, alle 11:30-12:30 in Sala Seminari, ci sarà il seminario dei baby-geometri: - speaker: Alessio Carrega(Universita' di Pisa) - Titolo: Khovanov Homology - Abstract: We start from the basic definitions of knot theory. Using the combinatorial approach with diagrams we define Khovanov homology: an invariant for oriented links that generalize Jones polynomial. We don't give all the details of the definitions, but we try to give an idea of the construction and some topological and categorial properties. We will finish talking about a variant for framed links that I have constructed. (Dopo il seminario, offriremo un buffet di dolce e salato) -- Simone (simone.calamai(a)sns.it) Daniele (angella(a)mail.dm.unipi.it) www.dm.unipi.it/cluster-pages/angella/baby-geometri/

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Convegno Cortona giugno 2013
by Bruno Martelli 15 Feb '13

15 Feb '13

buondì, re-invio l'annuncio sul convegno a Cortona in onore di Riccardo, che avevo passato in mailing list un po' di tempo fa. La deadline è teoricamente oggi, nella pratica va bene anche lunedì prossimo. a presto, Bruno ------- We would like to announce the following conference: INdAM Meeting Geometric topology in Cortona Interactions of quantum topology and hyperbolic geometry A conference in honor of Riccardo Benedetti for his 60th birthday Cortona, Italy 3-7 June 2013 Web page: http://www.dm.unipi.it/~martelli/Cortona/Cortona.html The aim of this conference, located at the Palazzone in Cortona (Tuscany, Italy), is to bring together researchers in geometric and quantum topology, mainly focusing on 3-manifolds, hyperbolic geometry, and quantum invariants. Speakers include: Ian AGOL (UC Berkeley - to be confirmed) Daniele ALESSANDRINI (Heidelberg) Stéphane BASEILHAC (Montpellier 2) Jeff BROCK (Brown) Francis BONAHON (USC) Michel BOILEAU (Toulouse) Francesco COSTANTINO (Strasbourg) Neil HOFFMAN (MPIM Bonn) Effie KALFAGIANNI (Michigan State) Marc LACKENBY (Oxford) Julien MARCHÉ (Jussieu) Carlo PETRONIO (Pisa) Julien ROGER (Rutgers) Juan SOUTO (Vancouver BC) Roland VAN DER VEEN (Berkeley) Organizers: Francesco Bonsante (Pavia), David Futer (Temple), Bruno Martelli (Pisa), Gabriele Mondello (Roma), Jessica Purcell (Brigham Young)

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Ciclo "Baby Geometri" - Seminario di Alessio Carrega
by Daniele Angella 14 Feb '13

14 Feb '13

---------------------------- Original Message ---------------------------- Subject: Ciclo "Baby Geometri" - Seminario di Alessio Carrega From: "simone calamai" <simocala(a)gmail.com> Date: Thu, February 14, 2013 3:33 pm -------------------------------------------------------------------------- Ciao a tutti, il prossimo incontro dei seminari dei baby geometri è fissato per - data: Martedi' 19 Febbraio, 11:30-12:30, Sala Seminari - speaker: Alessio Carrega (Universita' di Pisa) - Titolo: Khovanov Homology (Dopo il seminario, offriremo un buffet di dolce e salato) -- Simone (simone.calamai(a)sns.it) Daniele (angella(a)mail.dm.unipi.it) www.dm.unipi.it/cluster-pages/angella/baby-geometri/

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