We study the Dirichlet problem for the eikonal equation: egin{displaymath} egin{cases} ha | u(x)|^2 - a(x) = 0 & extrm{in} Ocr u(x)=arphi(x) & extrm{on} partial O, end{cases} end{displaymath} without continuity assumptions on the map $a(cdot)$. We find a class of maps $a(cdot)$'s contained in the space $L^infty(O)$ for which the problem admits a (maximal) generalized solution, providing a generalization of the notion of viscosity solution.

Maximal generalized solution of eikonal equation / Zagatti, Sandro. - In: JOURNAL OF DIFFERENTIAL EQUATIONS. - ISSN 0022-0396. - 257:1(2014), pp. 231-263. [10.1016/j.jde.2014.04.001]

Maximal generalized solution of eikonal equation

Zagatti, Sandro
2014-01-01

Abstract

We study the Dirichlet problem for the eikonal equation: egin{displaymath} egin{cases} ha | u(x)|^2 - a(x) = 0 & extrm{in} Ocr u(x)=arphi(x) & extrm{on} partial O, end{cases} end{displaymath} without continuity assumptions on the map $a(cdot)$. We find a class of maps $a(cdot)$'s contained in the space $L^infty(O)$ for which the problem admits a (maximal) generalized solution, providing a generalization of the notion of viscosity solution.
2014
257
1
231
263
https://doi.org/10.1016/j.jde.2014.04.001
Zagatti, Sandro
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/15998
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