---------------------------- Original Message ----------------------------
Subject: Ciclo "baby geometri" - promemoria seminario di Daniele Celoria
From: "simone calamai" <simocala(a)gmail.com>
Date: Mon, April 15, 2013 9:14 am
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Ciao a tutti,
vi ricordiamo che domani Martedì 16 aprile, alle 16:30-17:30 in Aula
Riunioni del dip. mat.
ci sarà il seminario dei baby-geometri:
- speaker: Daniele Celoria (Università di Firenze)
- Titolo: "Rational blowdown of elliptic surfaces"
- Abstract: We introduce elliptic fibrations from a topological point
of view, together with some of the most common operations that can be
performed on them.
After a quick review of the Seiberg-Witten invariants, we define
rational blowdowns and use them to exhibit infinite families of
exotic elliptic fibrations.
--
Simone (simone.calamai(a)sns.it)
Daniele (angella(a)mail.dm.unipi.it)
www.dm.unipi.it/cluster-pages/angella/baby-geometri/
---------------------------- Original Message ----------------------------
Subject: Ciclo "Baby geometri" - Promemoria del seminario di David Petrecca
From: "Daniele Angella" <angella(a)mail.dm.unipi.it>
Date: Mon, April 8, 2013 10:41 am
To: simone.calamai(a)sns.it
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Ciao a tutti,
vi ricordiamo che domani martedì 9 aprile, alle 11:30 - 12:30 in Sala
Seminari del Dipartimento di Matematica, ci sarà il seminario dei
baby-geometri:
- speaker: David Petrecca (Università di Pisa)
- Titolo: Introduction to Sasakian geometry
- Abstract:
Sasakian geometry can be thought as the odd dimensional companion of
Kähler geometry. As the latter merges together Riemannian, symplectic and
complex geometries, a Sasakian manifold is simultaneously Riemannian,
contact and CR and moreover it is sandwiched between two Kähler
geometries, the one on its Riemannian cone and the one transversal to its
Reeb foliation. Furthermore the behavior of such foliation gives a rough
classification of Sasakian manifolds in three classes. See the survey
[Sparks, Sasaki-Einstein manifolds, 2011] or the monograph [Boyer,
Galicki, Sasakian geometry, 2007]. In this talk, after defining the
Sasakian property and explaining the triple geometric structure on such
manifolds, some of their properties and structure theorems will be
presented, followed by examples in each of the above classes. Finally, if
time allows, I will give some ideas about the deformation theory of
Sasakian structures and their application to the deformation of (traced)
Sasaki-Ricci solitons, the area where my current research attempts are
lying.
A domani,
--
Simone (simone.calamai(a)sns.it)
Daniele (angella(a)mail.dm.unipi.it)
www.dm.unipi.it/cluster-pages/angella/baby-geometri/
---------------------------- Original Message ----------------------------
Subject: Ciclo "Baby geometri" - comunicazione del seminario di David
Petrecca
From: "simone calamai" <simocala(a)gmail.com>
Date: Thu, April 4, 2013 3:00 pm
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Ciao a tutti, il prossimo incontro dei "seminari dei baby geometri" è
fissato per
- Martedì 9 aprile, ore 11:30 - 12:30, Sala Seminari del Dipartimento
di Matematica
- speaker: David Petrecca (Università di Pisa)
- Titolo: Introduction to Sasakian Geometry
--
Simone (simone.calamai(a)sns.it) Daniele (angella(a)mail.dm.unipi.it)
Ulteriori informazioni su:
www.dm.unipi.it/cluster-pages/angella/baby-geometri/
---------------------------- Original Message ----------------------------
Subject: Ciclo "Baby geometri" - Promemoria del seminario di Marco Golla
From: "simone calamai" <simocala(a)gmail.com>
Date: Wed, April 3, 2013 9:21 am
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Ciao a tutti,
vi ricordiamo che domani giovedì 4 aprile, alle 11:30 - 12:30 in Aula 1
del Dipartimento di Matematica, ci sarà il seminario dei baby-geometri:
- speaker: Marco Golla (Hungarian Academy of Sciences)
- Titolo: Why is Heegaard Floer homology so popular?
- Abstract: In this talk I will give my answer this question, trying not
to get tangled up with the boring details. I will discuss in some detail
the construction of an exotic R^4, and I will introduce some tools that
Ozsváth and Szabó used to re-prove the Milnor conjecture, Donaldson's
diagonisability theorem and the Thom conjecture.
--
Simone (simone.calamai(a)sns.it)
Daniele (angella(a)mail.dm.unipi.it)
www.dm.unipi.it/cluster-pages/angella/baby-geometri/