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<tr><th align="right" valign="baseline" nowrap="nowrap">Asunto:</th>
<td>Coloquio del Departamento de Matemática -- martes 9/8, 15:00 hs, Aula 5 -- Wilderich Tuschmann (Karlsruher Institut für Technologie, Alemania)</td>
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<tr><th align="right" valign="baseline" nowrap="nowrap">Fecha:</th>
<td>2016-08-03 11:50</td>
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<tr><th align="right" valign="baseline" nowrap="nowrap">Remitente:</th>
<td>Información Exactas <info@exactas.unlp.edu.ar></td>
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<tr><th align="right" valign="baseline" nowrap="nowrap">Destinatario:</th>
<td>"secre, secre" <secre@mate.unlp.edu.ar>, "secre, secre" <secre@fisica.unlp.edu.ar></td>
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<pre>Se difunde la siguiente invitación.-
--------------------------------
Estimados
el próximo martes 9 de agosto continuaremos con las reuniones periódicas
del Coloquio del Departamento de Matemática.
En esta ocasión, la charla estará a cargo de Wilderich Tuschmann
(Karlsruher Institut für Technologie, Alemania)
Día: martes 9 de agosto
Hora: 15:00 hs
Aula: Aula 5, Departamento de Matemática.
Expositor: Wilderich Tuschmann (Karlsruher Institut für Technologie,
Alemania)
Título: Spaces and moduli spaces of Riemannian metrics
Resumen:
The existence and construction of complete metrics with certain
prescribed curvature properties
such as, e.g., positivity of scalar or Ricci curvature, nonnegativity or
negativity of sectional curvature, etc.,
constitutes a basic question and task in Riemannian geometry.
On the other hand, once the respective existence problem has been solved,
there is an equally important second one, namely: How `many' metrics of the
given type are there, and
how `many' different geometries of this kind does the manifold actually
allow?
To answer these questions, one is led to study the corresponding
spaces of metrics that satisfy the curvature characteristics one is
interested in,
as well as their respective moduli spaces, i.e., the quotients of these
spaces
by the action of the diffeomorphism group given by pulling back metrics.
In my talk, I will present and survey recent results about such spaces
and moduli spaces
of complete Riemannian metrics with curvature bounds on open and closed
manifolds,
here focussing mainly on connectedness and disconnectedness properties,
and also discuss several open problems and questions in the field.
Están invitados a participar!
Para más información del coloquio, visitar la página web:
<a href="http://www.mate.unlp.edu.ar/coloquiodm/">http://www.mate.unlp.edu.ar/coloquiodm/</a>
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