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Pré-Publication, Document De Travail Année : 2016

The Laplace operator on the Sierpinski gasket with Robin boundary conditions

Résumé

We study the Laplace operator on the Sierpinski gasket with non-linear Robin boundary conditions. We show that for certain Robin boundary conditions the Laplace operator generates a positive, order preserving, L ∞-contractive semigroup which is sandwiched (in the sense of domination) between the semigroups generated by the Dirichlet-Laplace operator and the Neumann-Laplace operator. We also characterise all local semigroups which are sandwiched between these two extremal semigroups by showing that their generators are Robin-Laplace operators.
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Dates et versions

hal-01278774 , version 1 (24-02-2016)

Identifiants

  • HAL Id : hal-01278774 , version 1

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Brigitte Breckner, Ralph Chill. The Laplace operator on the Sierpinski gasket with Robin boundary conditions. 2016. ⟨hal-01278774⟩
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