Lecture
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04 Nov 2022 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Basic introduction to the theory of Sobolev spaces
11 Nov 2022 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Basic examples of PDEs, boundary conditions, systems
18 Nov 2022 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Rellich compactness theorem and Poincare' inequality. Proof of Garding inequality and of Tonelli lower semicontinuity theorem
25 Nov 2022 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Morrey's theorem and quasi convexity
02 Dic 2022 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Differentiation of measures, Hausdorff measures, introduction to Caccioppoli inequality
09 Dic 2022 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Proof of Caccioppoli inequality, Sobolev embeddings, Widman's technique
16 Dic 2022 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Nirenberg's method, means and medians, decay estimates for elliptic systems with constant coefficients
13 Gen 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Regularity up to the boundary. Interior estimates for nonlinear problems. Introduction to Campanato and Morrey spaces.
20 Gen 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Proof of Schauder theorem, propagation of regularity in Morrey and Campanato spaces
02 Feb 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
The space BMO and its characterizations. Weak L^p spaces, Maximal operators and Calderon-Zygmund decomposition
10 Feb 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Interpolation theorems, Stampacchia interpolation. Helmholtz decomposition
17 Feb 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Elliptic systems by duality. The case p=1. Coarea formula, Sobolev embedding and isoperimetric inequalities
24 Feb 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
De Giorgi's solution of Hilbert's XIX problem. Step 1: L^2 to L^infty estimate
03 Mar 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Holder regularity of solutions, completion of proof. De Giorgi's counterexample to full regularity. Introduction to Evans' theorem
10 Mar 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Completion of the proof of Evans' theorem. Nonlinear Caccioppoli inequality. Estimates on the dimension of the singular set.
17 Mar 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Introduction to the theory of viscosity solutions. Perron's method
24 Mar 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Comparison principle for sub and super solutions of first order. Characterization of the distance function in terms of solutions to the Eikonal equation. Preliminaries on convex functions
03 Apr 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Alexandrov theorem on differentiability of convex functions, Jensen's maximum principle, inf and sup convolutions
14 Apr 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Proof of the comparison principle and applications to existence and uniqueness results for boundary value problems in the viscosity sense
21 Apr 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Proof of the Alexandrov-Bakelman-Pucci estimate
28 Apr 2023 (2h 00m)
Luigi Ambrosio - Corso (attività didattica) - Mista
Proof of the Krylov-Safonov regularity theorem
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