Geometria_Pisa

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Fwd: Postdoctoral position in memory of Paolo de Bartolomeis
by Bruno Martelli 24 Aug '18

24 Aug '18

Inoltro avviso di borsa post-doc a Firenze in geometria. Ciao, Bruno ---------- Forwarded message ---------- From: Graziano Gentili <graziano.gentili(a)unifi.it> Date: Fri, Aug 24, 2018 at 9:22 AM Subject: Postdoctoral position in memory of Paolo de Bartolomeis To: Graziano Gentili <graziano.gentili(a)unifi.it> Postdoctoral position in memory of Paolo de Bartolomeis Deadline: 10 oct 2018 a postdoctoral position has been established at the Dipartimento di Matematica e Informatica "U. Dini", Università di Firenze, Italy. Strong candidates pursuing research in Complex and Symplectic Geometry, in the broadest sense, are warmly encouraged to apply within October, 10, 2018. The duration of this position is one year, possibly extendable for one further year. Details for the application can be found at the following links https://titulus.unifi.it/albo/viewer?view=files%2F002788389- UNFICLE-d6490c75-8ecb-46c8-a627-9f6e1ff7d1a8-000.pdf http://web.math.unifi.it/users/nannicini/florence_postdoc_2018.pdf This position has been established in memory of Professor Paolo de Bartolomeis and is fully funded by his family, with the aim of giving the opportunity to a young researcher to carry out research in the above fields. Please circulate this announcement to potential candidates. For further information please contact: fiammetta.battaglia(a)unifi.it antonella.nannicini(a)unifi.it

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Fwd: Post-doc' announcement
by Carlo Petronio 07 Jul '18

07 Jul '18

-------- Messaggio Inoltrato -------- Oggetto: Post-doc' announcement Data: Sat, 7 Jul 2018 18:21:06 +0200 Mittente: Gwenael Massuyeau <gwenael.massuyeau(a)u-bourgogne.fr> A: gwenael.massuyeau(a)u-bourgogne.fr Dear Colleagues, I would be very grateful if you could forward the following announcement for a post-doctoral position in Dijon to anyone who might be interested. (Please note that the deadline is close !) Best regards, Gwenael. ************************************************************************************ *Post-doctoral position * In the framework of the ANER project ITIQ-3D, recently funded by the "Région Bourgogne Franche-Comté", a one-year post-doctoral position is available at the "Institut de Mathématiques de Bourgogne" <https://math.u-bourgogne.fr/> in Dijon. The general research areas are low-dimensional topology and quantum topology. Some more specific research themes are * finite-type invariants of knots & 3-manifolds, * categorification of knot & 3-manifold invariants, * applications to mapping class groups of surfaces. There are no teaching duties and the salary (before income taxes) will be about 2350€ per month. The starting date should be between October 1, 2018 and December 1, 2018. To apply please send a CV, including a list of publications, and a cover letter with research interests to gwenael.massuyeau(a)u-bourgogne.fr <mailto:> by July 20, 2018.

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Fwd: Professor position in Geometry, University of Luxembourg
by Bruno Martelli 18 Jun '18

18 Jun '18

Segnalo una posizione da professore in geometria in Lussemburgo. Saluti, Bruno ---------- Forwarded message ---------- From: Jean-Marc Schlenker <jeanmarc.schlenker(a)gmail.com> Date: Sat, Jun 16, 2018 at 9:54 PM Subject: Professor position in Geometry, University of Luxembourg To: Cc: "jean-marc.schlenker(a)uni.lu" <jean-marc.schlenker(a)uni.lu> Dear colleagues, A professor position in geometry is currently open at the University of Luxembourg. I would be grateful if you could transfer this information to any potential candidate. To apply, see http://emea3.mrted.ly/1vac5 Deadline is Nov 30, 2018. All the best, Jean-Marc -- Jean-Marc Schlenker +352 46 66 44 5438 Université du Luxembourg, UR en Mathématiques Maison du nombre, 6 avenue de la Fonte L-4364 Esch-sur-Alzette, Luxembourg http://math.uni.lu/schlenker

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Seminario giovedì
by Bruno Martelli 18 Jun '18

18 Jun '18

Buondì, Segnalo un seminario di geometria giovedì prossimo. A presto, Bruno ------- 21-Jun-2018 - 15:00 Sala Seminari (Dip. Matematica) <http://www.dm.unipi.it/webnew/it/aula/sala-seminari-dip-matematica> The AJ conjecture for SU(2) and SL(2,C) <http://www.dm.unipi.it/webnew/it/seminari/aj-conjecture-su2-and-sl2c> Alessandro Malusà Given a knot K in S^3, one can consider as invariants the A-polynomial and the coloured Jones polynomial. After illustrating the original AJ conjecture, as formulated by Garoufalidis, I will specify its motivation from quantum SU(2)-Chern-Simons theory, and attempt to make sense of the statement that the two invariants mentioned above are classical and quantum in nature, respectively. This opens the question as of whether one can formulate an analogous conjecture for different Lie groups. For SL(2,C), the existence of an invariant corresponding to the coloured Jones polynomial has been conjectured by Andersen and Kashaev; I will discuss how a construction similar to the one by Garoufalidis leads to an AJ-conjecture for this invariant.

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Fwd: [Algtop] due seminari giovedì 31
by Bruno Martelli 30 May '18

30 May '18

Buongiorno, Segnalo due seminari di geometria / algebra per domani pomeriggio. A presto, Bruno ====================================== giovedi` 31 maggio ore 15 aula seminari Luca Battistella Relative quasimaps and quasimap quantum Lefschetz Quasimaps provide a compactification of the space of maps from smooth curves to a GIT quotient; Ciocan-Fontanine and Kim used them to prove beautiful wall-crossing formulae, comparing the resulting invariants with ordinary Gromov-Witten ones. In joint work with Navid Nabijou, we introduce the notion of genus zero relative quasimaps to a toric target X with respect to a smooth (but not necessarily toric) hyperplane section Y, extending work of Gathmann to this setting. Increasing the tangency requirement gives us smaller and smaller moduli spaces; their virtual classes are related by a simple recursion formula. Gathmann's inductive algorithm allows us to compute restricted invariants of Y from those of X. Under some positivity assumption, this can be made into a compact formula for generating series of quasimap invariants, which recovers a result of Ciocan-Fontanine and Kim. We are working towards an extension of this approach to reduced genus one invariants. giovedi` 31 maggio ore 16 aula seminari Giovanni Inchiostro Moduli of Weierstrass fibrations. We study the the moduli space of KSBA stable pairs (X,sS+\sum a_i F_i), consisting of a Weierstrass fibration X, its section S, and some fibers F_i. We find a compactification which is a DM stack, and we prove that there are wall-crossing morphisms when the weights s and a_i change. This recovers the work of Ascher and Bejleri in the case in which s=1 and the one of La Nave when s=1 and a_i=0. _______________________________________________ Algtop mailing list Algtop(a)fields.dm.unipi.it https://fields.dm.unipi.it/listinfo/algtop

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Ultimo seminario dei Baby Geometri
by Marco Moraschini 25 May '18

25 May '18

Cari tutti, vi segnalo l'ultima attività per il ciclo di seminari dei Baby Geometri di quest'anno: Lunedì 28 Maggio alle 16:30 presso l'Aula Magna del Dipartimento di Matematica Mauro Artigiani (Centro De Giorgi) terrà un seminario dal titolo: Dynamics on translation surfaces: a (very very very) short survey di cui riporto l'abstract: "Translation surfaces are surfaces which come naturally into play both from a dynamical motivation (billiards in polygons) and from a more algebro-geometrical point of view (they are related to the Teichmuller space). We will start with some examples, give some motivations about why one is interested in them and then focus more on the dynamical side. We will give a short survey of some more or less classical result from the very rich literature. Time permitting, we will also relate this to some Diophantine approximation." A seguire ci sarà un brindisi per sancire la fine del ciclo di seminari per quest'anno! Tutti gli interessati sono invitati a partecipare. Per saperne di più sui prossimi seminari scrivete a babygeometri(a)cs.dm.unipi.it <https://student-web1.dm.unipi.it/squirrelmail/src/compose.php?send_to=babyg…> o consultate la nostra pagina web: http://people.dm.unipi.it/babygeometri/ Saluti, Giulio Belletti, Edoardo Fossati e Marco Moraschini

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Seminario dei Baby Geometri
by Marco Moraschini 22 May '18

22 May '18

Cari tutti, vi segnalo questa attività per il ciclo di seminari dei Baby Geometri: Venerdì 25 Maggio alle 16:30 presso l'Aula Seminari del Dipartimento di Matematica Maylis Limouzineau (Università di Colonia) terrà un seminario dal titolo: Legendrian cobordisms di cui riporto l'abstract: Our framework here is low dimensional topology, and the main protagonists are Legendrian submanifolds, i.e. those which remains obediently tangent to the contact hyperplane distribution. We will see the subtleties brought by Legendrian knots in comparison with classical smooth knots, and understand the natural cobordism notion coming out, initiated by Arnol'd in the early 80's: "What is a Legendrian surface between two Legendrian knots?" There will be infinitely many trivial knots, some bow ties, one swallow tail... and a lot of drawings. Tutti gli interessati sono invitati a partecipare. Per saperne di più sui prossimi seminari scrivete a babygeometri(a)cs.dm.unipi.it <https://student-web1.dm.unipi.it/squirrelmail/src/compose.php?send_to=babyg…> o consultate la nostra pagina web: http://people.dm.unipi.it/babygeometri/ Saluti, Giulio Belletti, Edoardo Fossati e Marco Moraschini

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Research Felllow position in algebra and geometry in Pisa - Posto da ricercatore di tipo A in algebra e geometria a Pisa
by Bruno Martelli 17 May '18

17 May '18

Dear colleague, A Junior Research Fellow position (Ricercatore di Tipo A) is currently open in algebra or geometry at the Math Department in Pisa. Contract duration: 3 years Gross annual salary: € 34.898 Deadline for application: 04/06/2018, 1 p.m. Here is the link: https://www.unipi.it/ateneo/bandi/ricercat/ricercator/Procedura-2/index.htm I would be grateful if you could forward this information to any potentially interested candidate. Best wishes, Bruno Martelli

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Seminario geometria
by Bruno Martelli 15 May '18

15 May '18

Buongiorno, Siete invitati al seminario di geometria di domani (c'è purtroppo una sovrapposizione con un altro seminario in Normale di cui mi accorgo solo ora... ). A presto, Bruno Martelli 16-May-2018 - 15:30 Sala Seminari (Dip. Matematica) <http://www.dm.unipi.it/webnew/it/aula/sala-seminari-dip-matematica> Pretzel links, mutation, and the slice-ribbon conjecture <http://www.dm.unipi.it/webnew/it/seminari/pretzel-links-mutation-and-slice-…> Paolo Aceto We show that the mutant 2-component pretzel links P(p,q,-q,-p) and P(p,q,-p,-q) are not concordant for any distinct odd integers p and q greater than 1. As a corollary, we obtain a proof of the slice-ribbon conjecture for 4-stranded 2-component pretzel links. In order to distinguish mutant links up to concordance we consider 3-fold branched covers and use an obstruction based on Donaldson's diagonalization theorem. This is joint work with Min Hoon Kim, JungHwan Park and Arunima Ray.

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Seminario dei Baby Geometri
by Marco Moraschini 10 May '18

10 May '18

Cari tutti, vi segnalo questa attività per il ciclo di seminari dei Baby Geometri: Lunedì 14 Maggio alle 16:30 presso l'Aula Seminari del Dipartimento di Matematica Lorenzo Ruffoni (Università di Bologna) terrà un seminario dal titolo: Complex projective structures and Hilbert's XXI problem di cui riporto l'abstract: Complex projective structures are geometric structures locally modeled on the geometry of the Riemann sphere with its group of Möbius transformations PSL(2,C). As this space appears as a natural boundary at infinity for the hyperbolic space, a typical feature of these structures is the interplay between complex analysis and hyperbolic geometry, which gives rise to a rich deformation theory. After reviewing some of the main properties of their deformation space, we will discuss how the study of complex projective structures can provide solutions to Hilbert's XXI problem about monodromy groups of certain classes of ODEs on Riemann surfaces. Tutti gli interessati sono invitati a partecipare. Per saperne di più sui prossimi seminari scrivete a babygeometri(a)cs.dm.unipi.it <https://student-web1.dm.unipi.it/squirrelmail/src/compose.php?send_to=babyg…> o consultate la nostra pagina web: http://people.dm.unipi.it/babygeometri/ Saluti, Giulio Belletti, Edoardo Fossati e Marco Moraschini

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