Data di Pubblicazione:
2018
Citazione:
(Non)local and (non)linear free boundary problems / S. Dipierro, E. Valdinoci. - In: DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS. SERIES S. - ISSN 1937-1632. - 11:3(2018 Jun), pp. 465-476. [10.3934/dcdss.2018025]
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.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Bernoulli's law; fractional perimeter; free boundary problems; Gagliardo norm; nonlocal minimal surfaces; analysis; discrete mathematics and combinatorics; applied mathematics
Elenco autori:
S. Dipierro, E. Valdinoci
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