(Non)local and (non)linear free boundary problems

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Abstract

We discuss some recent developments in the theory of free boundary problems, as obtained in a series of papers in collaboration with L. Caffarelli, A. Karakhanyan and O. Savin. The main feature of these new free boundary problems is that they deeply take into account nonlinear energy superpositions and possibly nonlocal functionals. The nonlocal parameter interpolates between volume and perimeter functionals, and so it can be seen as a fractional counterpart of classical free boundary problems, in which the bulk energy presents nonlocal aspects. The nonlinear term in the energy superposition takes into account the possibility of modeling different regimes in terms of different energy levels and provides a lack of scale invariance, which in turn may cause a structural instability of minimizers that may vary from one scale to another.
LanguageEnglish
Pages465-476
Number of pages12
JournalDISCRETE & CONTINUOUS DYNAMICAL SYSTEMS. SERIES A
Volume11
Issue number3
DOIs
Publication statusPublished - 2018
Externally publishedYes

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Free Boundary Problem
Invariance
Electron energy levels
Superposition
Energy
Scale Invariance
Perimeter
Energy Levels
Minimizer
Fractional
Interpolate
Vary
Series
Term
Modeling

Cite this

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(Non)local and (non)linear free boundary problems. / Dipierro, S.; Valdinoci, E.

In: DISCRETE & CONTINUOUS DYNAMICAL SYSTEMS. SERIES A, Vol. 11, No. 3, 2018, p. 465-476.

Research output: Contribution to journalArticle

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