Lorenzo Zambotti, Sorbonne Université, Parigi
Regularity structures: from physics to probability, from analysis to algebra, from combinatorics to geometry
Lunedì 28 Ottobre 2019, ore 16:00
U3-07 dell'edificio U3 (piano terra, Piazza della Scienza), Università di Milano-Bicocca, in Via Cozzi 55 | |
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Paul H. Rabinowitz, University of Wisconsin, Madison
Mountain pass structure, non-degeneracy conditions and variational gluing
Venerdì 20 Settembre 2019, ore 14:00
Sala di Rappresentanza, Via C. Saldini 50 | |
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Radu Laza, Stony Brook
The LLV decomposition for hyper-Kaehler cohomology
Venerdì 12 Luglio 2019, ore 14:30
Sala di Rappresentanza, Via C. Saldini 50 | |
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Lorenzo Giacomelli, Università La Sapienza, Roma
The mathematics of spreading droplets
Lunedì 24 Giugno 2019, ore 16:30 precise
Sala Consiglio, 7 piano, Edificio La Nave, Via Ponzio 31-33 | |
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Yakir Aharonov, Chapman University
A new approach to quantum mechanics
Martedì 18 Giugno 2019, ore 16:00 precise
Sala Consiglio, 7 piano, Edificio La Nave, Via Ponzio 31-33 | |
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Rostislav Grigorchuk, Texas A&M University
'Strange' rational maps and spectra of graphs and groups
Giovedì 13 Giugno 2019, ore 16:30 precise
'Aula U5-3014 (Edificio 5, terzo piano) del Dipartimento di Matematica e Applicazioni dell'Università di Milano-Bicocca, Via Cozzi 55 |
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Abstract
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I will present a few results concerning spectral theory of
graphs and groups that are based on the use of multidimentional rational
maps and self-similar groups. It will be explained how these maps
appear, how they help to compute the spectrum, and why they are
``strange'' (or better to say, non typical). As part of the story there
will be a short survey on spectra of infinite graphs and groups with
some old and new results belonging to the speaker and his collaborators
(L.Bartholdi, A.Dudko, D.Lenz, T.Nagnibeda, B.Simanek, A.Zuk). The
relation to the random Schrodinger operator will be mentioned at the end
of the talk if time permits. |
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