The Lax solution to a Hamilton–Jacobi eq
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Ya.V. Mykytiuk; A.K. Prykarpatsky; D. Blackmore
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Article
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2003
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Elsevier Science
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English
⚖ 232 KB
It is proved that the function deÿned by the inÿmum-based Lax formula (for viscosity solutions) provides a solution almost everywhere in x for each ÿxed t ¿ 0 to the Hamilton-Jacobi, Cauchy problem ut + 1 2 ∇u 2 = 0; u(x; 0 + ) = v(x); where the Cauchy data function v is lower semicontinuous on rea