Geometria_Pisa

geometria_pisa@lists.dm.unipi.it

3 participants
769 discussions

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

1 0

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.

1 0

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

1 0

Seminari oggi e domani
by Bruno Martelli 08 May '18

08 May '18

Buondì, Segnalo due seminari di geometria, oggi e domani (in due luoghi diversi). A presto, Bruno ----- 08-May-2018 - 15:00 Sala Conferenze (Puteano, Centro De Giorgi) <http://www.dm.unipi.it/webnew/it/aula/sala-conferenze-puteano-centro-de-gio…> Non-tangential convergence (and applications to holomorphic dynamics) <http://www.dm.unipi.it/webnew/it/seminari/non-tangential-convergence-and-ap…> Filippo Bracci The notion of non-tangential convergence is one of the basic concept of complex geoemtry in one and several variables. It is known that univalent maps from the disc into the complex plane admit non-tangential limit almost everywhere on the boundary of the disc, and Carathéodory’s prime ends theory fully describe the boundary behavior. However, starting with a simply connected domain, it is not clear in general when a given sequence in that domain converges non-tangentially to the boundary of the disc after pulling back via a Riemann map of the domain. The aim of this talk is to give a complete answer to such a question in terms of hyperbolic geometry, using Gromov’s hyperbolicity theory. Since every holomorphic self-map of the unit disc has a (essentially unique) holomorphic linearizing model (where dynamical properties of the map can be read via the geometry of the model domain), the previous characterization allows to study the type of convergence to the Denjoy-Wolff point for maps without inner fixed points. In this talk we will restrict ourselves mainly to the case of semigroups of holomorphic self-maps of the unit disc and show how to construct “pathological” examples of semigroups whose orbits converge to the Denjoy-Wolff point oscillating but non-tangentially, or partially tangential and partially non-tangentially. 09-May-2018 - 15:30 Sala Seminari (Dip. Matematica) <http://www.dm.unipi.it/webnew/it/aula/sala-seminari-dip-matematica> Slice-torus link invariants and Whitehead doubles <http://www.dm.unipi.it/webnew/it/seminari/slice-torus-link-invariants-and-w…>

1 0

Seminario dei Baby Geometri
by Marco Moraschini 03 May '18

03 May '18

Cari tutti, vi segnalo questa attività per il ciclo di seminari dei Baby Geometri: Lunedì 7 Maggio alle 16:30 presso l'Aula Seminari del Dipartimento di Matematica Gianluca Faraco (Università degli Studi di Parma) terrà un seminario dal titolo: Be hyperbolic! Be pure! di cui riporto l'abstract: In this talk we will talk about the relationship between hyperbolic cone-structures and their holonomy representations. Any hyperbolic structure on a given closed compact and orientable surface S induces in a very natural way a representation of the fundamental group in the Lie group PSL(2,R), which encodes geometric data about the structure. The reverse problem to recover a hyperbolic cone-structure from a given representation is more arduous and longer. Even worse it is not always possible. In the first part of this talk we will consider this problem from a general viewpoint giving examples of representations that not arise as the holonomy of hyperbolic cone-structure. In the second part we focus our attention to a very special class of representations, namely purely hyperbolic representations. 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

1 0

Seminari dei Baby-Geometri
by Marco Moraschini 27 Apr '18

27 Apr '18

Cari tutti, vi segnalo questa attività per il ciclo di seminari dei Baby Geometri: Lunedì 30 Aprile alle 16:30 presso l'Aula Seminari del Dipartimento di Matematica Alessio Savini(ETH Zurich - Bologna) ci parlerà di: Rigidity of real hyperbolic lattices: a "natural" approach di cui riporto l'abstract: Rigidity of lattices in semisimple Lie groups has been widely studied so far. One of the most celebrated theorem is Mostow rigidity, which states the following. Assume n bigger or equal than 3. If two complete hyperbolic n-manifolds of finite volume have isomorphic fundamental groups then they are isometric. Equivalently their fundamental groups are conjugated in the group of isometries of the hyperbolic n-space. There are several ways to prove this theorem. We will expose a proof based on the so-called natural maps, introduced by Besson-Courtois-Gallot and will try to explain the role played by the geometric/aritmetic mean inequality in the proof. 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

1 0

Fwd: bando assegno di ricerca n. 2_2018
by Bruno Martelli 24 Apr '18

24 Apr '18

Segnalo assegni di ricerca a Roma. Saluti, Bruno ---------- Forwarded message ---------- From: Mondello, Gabriele <mondello(a)mat.uniroma1.it> Date: 2018-04-23 19:10 GMT+02:00 Subject: Fwd: bando assegno di ricerca n. 2_2018 To: Vi inoltro il seguente bando: https://www2.mat.uniroma1.it/sites/default/files/bando2018-2.pdf BANDO n. 2/2018 per il conferimento di n. 2 assegni annuali categoria A tip. II _ Matematica e sue applicazioni. SSD: tutti scadenza: 23 maggio 2018 *e-mail: *rosanna.briscese(a)uniroma1.it

1 0

Seminario oggi
by Bruno Martelli 24 Apr '18

24 Apr '18

Con colpevole ritardo vi ricordo il seminario di geometria di oggi alle 15. Siete tutti invitati, Bruno ----- 24-Apr-2018 - 15:00 Aula Magna (Dip. Matematica) <http://www.dm.unipi.it/webnew/it/aula/aula-magna-dip-matematica> Un punto di vista dinamico sull'omologia di Floer dei nodi <http://www.dm.unipi.it/webnew/it/seminari/un-punto-di-vista-dinamico-sullom…> Paolo Ghiggini L'omologia di Floer dei nodi è un invariante di nodi molto potente introdotto da Ozsvath e Szabo circa quindici anni fa tramite costruzioni di geometria simplettica. Dopo aver ricordato le sue proprietà di base, descriverò come, nel caso di un nodo fibrato, si possa reinterpretare come un "conto" di punti periodici della monodromia.

1 0

Seminari dei Baby-Geometri
by Marco Moraschini 24 Apr '18

24 Apr '18

Cari tutti, vi segnalo questa attività per il ciclo di seminari dei Baby Geometri: Giovedì 26 Aprile alle 15:45 presso l'Aula Magna del Dipartimento di Matematica si terrà il Seminario dei Baby-Geometri di Viktória Földvári (Elte University, Budapest) dal titolo: Introduction to Legendrian 2-bridge knots di cui riporto l'abstract: On an oriented 3-manifold we can define a contact structure, that is, a completely non-integrable plane field in the tangent bundle of the manifold. Regarding such a structure we consider knots that are everywhere tangent to this plane field. After setting up the basic notions, I am giving an introduction to Legendrian knot theory and briefly present my research topic focusing on two-bridge knots. 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, Edoardo Fossati, Giulio Belletti e Marco Moraschini

1 0

Fwd: Two postdoc positions in Firenze
by Bruno Martelli 21 Apr '18

21 Apr '18

Ricevo ed inoltro. Bruno ---------- Forwarded message ---------- From: Daniele Angella <daniele.angella(a)gmail.com> Date: Thu, Apr 19, 2018 at 8:35 PM Subject: Two postdoc positions in Firenze To: geometriaglobale(a)lists.math.unifi.it, EAGER-GEN(a)listserv.dfn.de Dear colleagues, Two one-year postdoc positions are available at Università di Firenze within the SIR2014 project “Analytic aspects in complex and hypercomplex geometry". There is no teaching load. Potential candidates should have expertise in at least one of the following areas in Complex and differential geometry: Cohomological properties of complex manifolds, Special Hermitian metrics, Lie group actions and geometry of homogeneous spaces. Deadline for application is May 18. The chosen candidates will work in Firenze, starting July 2018. Information and instructions to apply can be found at https://titulus.unifi.it/albo/viewer?view=files%2F002759305- UNFICLE-4292b779-b3cf-431b-b359-34482d30db99-000.pdf For more information, please write to daniele.angella(AT)unifi.it. Please spread this message to whomever might be interested. All the best, Daniele Angella -- Dipartimento di Matematica e Informatica "Ulisse Dini" Università di Firenze

1 0

← Newer
1
...
34
35
36
37
38
39
40
...
77
Older →

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

Geometria_Pisa