Notiziario Scientifico
Notiziario dei seminari di carattere matematico
a cura del Dipartimento 'G. Castelnuovo'
Sapienza Università di Roma
Settimana dal 19 al 25 giugno 2017
Lunedì 19 giugno 2017
Ore 09:30, aula INdAM, Istituto Nazionale di Alta Matematica
F. Severi, piazzale A. Moro 5
workshop Numerical methods for optimal control problems:
algorithms, analysis and applications
09:30 Registration
11:15 F. Bonnans
12:00 M. Gerdts
14:30 K. Kunisch
15:15 A. Borzi
16:30 V. Simoncini
Lunedì 19 giugno 2017
Ore 10:00, Aula Multimediale, Università Telematica
Internazionale UniNettuno, piazza Grazioli 17
Workshop 'Current and Rediscovered Scaling Laws: new Perspectives
and Initiatives in Fusion Research'
Lunedì 19 giugno 2017
Ore 16:00, aula F, dipartimento di Mmatematic e Fisica,
Università di Roma Tre, largo san L. Murialdo 1
colloquium di Matematica
Scott Chapman (Sam Houston State University)
120 Years of Mathematics Through the Eyes of the American
Mathematical Monthly
For over 120 years, the American Mathematical Monthly has served as
Mathematics' most widely read journal for general audience papers.
The Monthly holds a unique niche amongst journals in the Sciences, as
its articles are intended to inform, stimulate, challenge, enlighten,
and even entertain; Monthly articles are meant to be read, enjoyed,
and discussed, rather than just archived. The long history of the
Monthly does not just include papers which had significant impact on
both the research and teaching communities, but its articles can be
used as a mirror which reflects the trends and attitudes of not only
Mathematicians, but academics in general. In this talk, I will
briefly cover the history and accomplishments of the Monthly. The
talk will conclude with a summary of two recent Monthly articles
dealing with the constant Pi: 'On Pi Day 2014, Pi's normality is still
in question', by Jonathan Borwein and David Bailey;
'I Prefer Pi: A Brief History and Anthology of Articles in the
American Mathematical Monthly', by Jonathan Borwein and Scott Chapman.
Martedì 20 giugno 2017
Ore 09:00, aula INdAM, Istituto Nazionale di Alta Matematica
F. Severi, piazzale A. Moro 5
workshop Numerical methods for optimal control problems:
algorithms, analysis and applications
09:00 M. Diehl
09:45 T. Faulwasser
11:15 C. Jones
12:00 M. Mueller
14:30 A. Krener
15:15 W. Kang
16:30 I. Mitchell
Martedì 20 giugno 2017
Ore 11:00, aula Dal Passo, dipartimento di Matematica,
Università di Roma Tor Vergata
seminario di Geometria Algebrica
Rick Miranda (Colorado State University)
Matrix reduction approaches to interpolation problems:
a review with remarks, I & II
About ten years ago M Dumnicki developed some techniques for interpolation
problems related to a careful study of the rank of the matrices involved.
Using these techniques he was able to extend the state of the art at the time,
bringing certain problems into the range of computer analyses; this enabled
him to prove that linear systems in the plane satisfied the SGHH conjecture
for homogeneous multiplicities up to 42, the record then.
We'll review the method, and consider some refinements, and applications to
systems with ten points. The talk should be accessible to non-experts.
Martedì 20 giugno 2017
Ore 14:30, aula di Consiglio
seminario di Algebra e Geometria
Frederic Campana (Université Lorraine)
Birational stability of the orbifold cotangent bundle
We show that a foliation on a projective complex manifold is algebraic with
rationally connected (closure of) leaves exactly when its minimal slope with
respect to some movable class is positive. This extends and strengthens former
classical results by Y. Miyaoka and Bogomolov-McQuillan. Applications to
foliations, hyperbolicity (a converse to a result of J.-P. Demailly) and
moduli will be mentioned. This is a joint work with Mihai Paun, partly based
on a former joint work with T. Peternell.
Martedì 20 giugno 2017
Ore 14:30, aula Dal Passo, dipartimento di Matematica,
Università di Roma Tor Vergata
seminario di Equazioni Differenziali
Livia Corsi (Georgia Tech, Atlanta)
Billiards and rigid rotations
Probably one of the most famous open problems concerning biliard systems
is the Birkhoff conjecture: 'If a biliard map is integrabile than the
boundary of the biliard table is an ellipse'.
Recently Treschev conjectured that there might exist analytic biliards,
different from ellipses, for which the dynamics in the neighborhood of the
period-2 orbit is conjugated to a rigid rotation, suggesting a very
interesting example of local integrability for biliard tables different
from ellipses. However the result of Treschev is only formal in the sense
that he finds only a formal power series. Our aim is to prove the
convergence of such series. This is a joint work (in progress) with M.
Procesi.
Mercoledì 21 giugno 2017
Ore 09:00, aula INdAM, Istituto Nazionale di Alta Matematica
F. Severi, piazzale A. Moro 5
workshop Numerical methods for optimal control problems:
algorithms, analysis and applications
09:00 A. Vladimrsky
09:45 H. Zidani
11:15 O. Bokanowski
12:00 I. Capuzzo Dolcetta
14:30 Contributed Talks
Mercoledì 21 giugno 2017
Ore 15:00, aula di Consiglio
seminario di Algebra e Geometria
Bart Van Steirteghem (CUNY)
Momentum polytopes of multiplicity free Hamiltonian manifolds
Generalizing T. Delzant's classification of toric symplectic manifolds, F. Knop has shown
that multiplicity free Hamiltonian manifolds are classified by their momentum polytope
and generic isotropy group.
In this talk I will explain how the theory of (smooth affine) spherical varieties can be
used to give a combinatorial characterization of the momentum polytopes of these
manifolds. This is joint work with G. Pezzini.
Giovedì 22 giugno 2017
Ore 09:00, aula INdAM, Istituto Nazionale di Alta Matematica
F. Severi, piazzale A. Moro 5
workshop Numerical methods for optimal control problems:
algorithms, analysis and applications
09:00 P. Dower
09:45 M. Akian
11:15 S. Gaubert
12:00 McEneaney
14:30 Contributed Talks
Venerdì 23 giugno 2017
Ore 09:30, aula INdAM, Istituto Nazionale di Alta Matematica
F. Severi, piazzale A. Moro 5
workshop Numerical methods for optimal control problems:
algorithms, analysis and applications
09:30 E. Cristiani
10:15 N. Guglielmi
11:30 S. Cacace
12:15 M. Delfour
13:00 Conclusions
Tutte le informazioni relative a questo notiziario devono pervenire
esclusivamente all'indirizzo di posta elettronica
seminari@mat.uniroma1.it
entro le ore 24 del giovedì precedente la settimana interessata.
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