Frank Morgan, Williams College
The isoperimetric problem
Giovedì 25 Maggio 2017, ore 16:30
Aula Chisini, via Saldini 50 | |
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Laurent Stolovitch, Universite' de Nice Sophia-Antipolis
DYNAMICAL SYSTEMS AND GEOMETRY OF CAUCHY-RIEMANN MANIFOLDS
Martedì 16 Maggio 2017, ore 10:30
Sala di rappresentanza, Dipartimento di Matematica, Università degli Studi, Via C. Saldini 50 | |
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Frank den Hollander, Leiden University, The Netherlands
Random walks on dynamic random graphs
Mercoledì 10 Maggio 2017, ore 14:30
Aula U5-3014 del Dipartimento di Matematica e Applicazioni, Università degli Studi di Milano-Bicocca | |
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WENDELIN WERNER, ETH Zürich
RANDOM CRACKS IN SPACE
Lunedì 27 Marzo 2017, ore 16:30
Aula Chisini, via Saldini 50 | |
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Isabeau Birindelli, Università di Roma La Sapienza
Maximum principle and the principal eigenvalue, a long story
Giovedì 09 Marzo 2017, ore 17:00 precise
Aula Chisini, Dipartimento di Matematica, Via Saldini 50 |
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Abstract
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The link between the principal eigenvalue and the maximum principle has been made very clear since the works of Protter - Weinberger, Pucci and Berestycki-Nirenberg-Varadhan. Its consequences are important and go from regularity of solutions to their very existence.
I will start by giving a survey of this rich field in the classical case of the second order uniformly elliptic operators. Then I will go on describing what and how some of these results extend or not to non linear operators and to degenerate elliptic operators.
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