Teoria Geometrica della Misura II

Registro delle lezioni

Anno accademico 2021/2022
Docente Luigi Ambrosio

Lecture

  • 04 Feb 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Proof of the Fleming-Rishel coarea formula, monotone and BV functions, calibrations, examples of local minimizers

  • 11 Feb 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Poincare' and isopetrimetric inequalities, in local and global form. Localization lemma and definitions of measure-theoretic boundaries

  • 18 Feb 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Proof of the structure theorem of sets of finite perimeter. Fine properties of BV functions of one variable. Approximate continuity, approximate jump points, approximate differentiability.

  • 25 Feb 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Structure of the distributional derivative, absolutely continuous, jump and Cantor part

  • 04 Mar 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Approximate differentiability of BV functions, chain rule, trace operator.

  • 11 Mar 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Characterization of BV and Sobolev functions by their behaviour on parallel lines. Pointwise properties of the precise representative

  • 18 Mar 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Caccioppoli partitions, indecomposable components of sets of finite perimeter, Sobolev functions on nonsmooth domains, a short mention to the theory of SBV functions

  • 25 Mar 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Theory of currents: preliminaries on multilinear algebra

  • 01 Apr 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Top-dimensional currents, normal currents, real and integer rectifiable currents, flat currents.

  • 08 Apr 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Characterization of flat currents with rectifiable support, properties of flat currents with finite mass (absolute continuity, locality, continuity)

  • 29 Apr 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - A distanza

    Slicing theorem and introduction to metric valued BV maps

  • 06 Maggio 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Metric space valued maps, BV to Lipschitz property, Basic rectifiability criterion, Charcetrization of rectiafiable currents in terms of flatness and concentration of the mass measure

  • 13 Maggio 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Commutation properties of slice and restriction and push forward. Proof of the closure theorem and of the boundary rectifiability theorem

  • 27 Maggio 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Isoperimetric inequality, deformation theorem and existence of codimension-free and geometry-free isoperimetric constants

  • 03 Giu 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Local minimizers, excess, introduction to the regularity theory

  • 10 Giu 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Excess decay, tangent cones, Federer's dimension reduction argument

  • 24 Giu 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Introduction to the theory of rectifiable varifolds. Monotonicity formula

  • 09 Set 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Rectifiable varifolds, monotonicity formula and applications to Sobolev and Poincare' inequalities. Introduction to general varifolds

  • 16 Set 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Rectifiability criteria for general varifolds, monotonicity and upper semicontinuity of the density

  • 23 Set 2022 (2h 00m)

    Luigi Ambrosio - Corso (attività didattica) - Mista

    Compactness for integral varifolds, scketch of proof of Allard's theorem, via tilt lemma and excessy decay