Pré-Publication, Document De Travail Année : 2020

Quantitative regularity for parabolic De Giorgi classes

Régularité parabolique quantitative pour les classes de De Giorgi

Quantitative regularity for parabolic De Giorgi classes

Résumé

We deal with the De Giorgi Hölder regularity theory for parabolic equations with rough coefficients and parabolic De Giorgi classes which extend the notion of solution. We give a quantitative proof of the interior Hölder regularity estimate for both using De Giorgi method. Recently, the De Giorgi method initially introduced for elliptic equation has been extended to parabolic equation in a non quantitative way. Here we extend the method to the parabolic De Giorgi classes in a quantitative way. To this aim, we get a quantitative version of the non quantitative step of the method, the parabolic intermediate value lemma, one of the two main tools of the De Giorgi method sometimes called ``second lemma of De Giorgi''.

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Dates et versions

hal-02069086 , version 1 (15-03-2019)
hal-02069086 , version 2 (07-02-2020)

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Citer

Jessica Guerand. Quantitative regularity for parabolic De Giorgi classes. 2020. ⟨hal-02069086v2⟩

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