Robert V. Kohn, Courant Institute - New York University
A VARIATIONAL PERSPECTIVE ON WRINKLING PATTERNS IN THIN ELASTIC SHEETS
Lunedì 13 Ottobre 2014, ore 16:30
Università di Milano, Dipartimento di Matematica, Via Saldini |
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Abstract
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Thin sheets exhibit a daunting array of patterns. A key difficulty in their analysis is that while we have many examples, we have no classification of the possible patterns. I have explored an alternative viewpoint in a series of recent projects with Jacob Bedrossian, Peter Bella, Jeremy Brandman, and Hoai-Minh Nguyen. Our goal is to identify the scaling law of the minimum elastic energy (with respect to the sheet thickness, and in some cases with respect to other small parameters). Success entails proving upper bounds and lower bounds that scale the same way. The upper bounds are usually easier, since nature gives us a hint. The lower bounds are more subtle, since they must be ansatz-independent. In many cases, the arguments used to prove the lower bounds help explain why we see particular patterns. My talk will give an overview of this activity, and details of some examples. |
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Nicola Fusco, Università degli Studi di Napoli Federico II
STABILITA E MINIMALITA PER UN PROBLEMA VARIAZIONALE NON LOCALE
Giovedì 02 Ottobre 2014, ore 11:00
Dipartimento di Matematica del Politecnico, Aula Consiglio piano VII | |
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Gerhard Huisken, Tubingen University and Mathematische Forshingsinstitut Oberwolfach
HEAT DIFFUSION IN GEOMETRY
Lunedì 29 Settembre 2014, ore 16:30
Università di Milano, Dipartimento di Matematica, Via Saldini | |
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Yakov Eliashberg, Stanford University
CROSSROADS OF SYMPLECTIC RIGIDITY AND FLEXIBILITY
Giovedì 18 Settembre 2014, ore 16:30
Università di Milano, Dipartimento di Matematica, Via Saldini | |
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Giuseppe Savare, Università di Pavia
DIFFUSIONE, TRASPORTO OTTIMO E CURVATURA
Martedì 27 Maggio 2014, ore 11:00
Dipartimento di Matematica, Politecnico di Milano | |
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Claire Voisin , Ecole Polytechnique, Palaiseau
BIRATIONAL INVARIANTS AND APPLICATIONS TO RATIONALITY PROBLEMS
Martedì 13 Maggio 2014, ore 16:30
Università di Milano, Dipartimento di Matematica, Via Saldini | |
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