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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Helene Frankowska, Université Pierre et Marie Curie (Paris 6)
Second order necessary optimality condistions in optimal control
Martedì 15 Aprile 2014, ore 11:00 precise
Dipartimento di Matematica, Politecnico di Milano, Via Bonardi 9 - Sala Consiglio 7° piano | |
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Vincenzo Vespri, Università di Firenze
Pointwise estimates for nonnegative solutions to a class of degenerate/singular parabolic equations
Venerdì 28 Marzo 2014, ore 15:00 precise
Dipartimento di Matematica, Politecnico di Milano, Via Bonardi 9 - Aula Consiglio VII piano |
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Abstract
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Let us consider a class of homogeneous quasilinear parabolic equations whose prototypes are the p-Laplacian and the Porous medium equation.
We assume suitable monotonicity and Lipschitz conditions that are suffcient to have a comparison principle, to preserve the positivity of solutions and to guarantee the existence of the solution of a Cauchy problem with L¹ initial
datum.
By using recent results obtained in collaboration with Bögelein, Calahorrano, Piro Vernier and Ragnedda we are able to give some pointwise estimates from above and from below starting from the value of the solution attained in a point. We apply these results to give sharp estimates to the fundamental solution of such class of equations.
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