scholarly journals Numerical viscosity solutions to Hamilton-Jacobi equations via a Carleman estimate and the convexification method

2021 ◽  
pp. 110828
Author(s):  
Michael Klibanov ◽  
Loc H. Nguyen ◽  
Hung V. Tran
Keyword(s):  
Viscosity Solutions ◽  
Carleman Estimate ◽  
Numerical Viscosity ◽  
Jacobi Equations

scholarly journals VISCOSITY SOLUTIONS OF HAMILTON–JACOBI EQUATIONS WITH DISCONTINUOUS COEFFICIENTS

2007 ◽  
Vol 04 (04) ◽  
pp. 771-795 ◽  
Author(s):  
GIUSEPPE MARIA COCLITE ◽  
NILS HENRIK RISEBRO
Keyword(s):  
Cauchy Problem ◽  
Viscosity Solution ◽  
Viscosity Solutions ◽  
Front Tracking ◽  
Discontinuous Coefficients ◽  
Comparison Result ◽  
The Cauchy Problem ◽  
Temporal Location ◽  
Additional Regularity ◽  
Jacobi Equations

We consider Hamilton–Jacobi equations, where the Hamiltonian depends discontinuously on both the spatial and temporal location. Our main result is the existence of viscosity solution to the Cauchy problem, and that the front tracking algorithm yields an L∞ contractive semigroup. We define a viscosity solution by treating the discontinuities in the coefficients analogously to "internal boundaries". The existence of viscosity solutions is established constructively via a front tracking approximation, whose limits are viscosity solutions, where by "viscosity solution" we mean a viscosity solution that posses some additional regularity at the discontinuities in the coefficients. We then show a comparison result that is valid for these viscosity solutions.

scholarly journals Time Remotely Almost Periodic Viscosity Solutions of Hamilton-Jacobi Equations

2011 ◽  
Vol 2011 ◽  
pp. 1-13 ◽  
Author(s):  
Shilin Zhang ◽  
Daxiong Piao
Keyword(s):  
Viscosity Solutions ◽  
Existence And Uniqueness ◽  
Almost Periodic Functions ◽  
Periodic Case ◽  
Almost Periodic ◽  
Periodic Functions ◽  
Existence And Uniqueness Results ◽  
Uniqueness Results ◽  
Jacobi Equations

We study some properties of the remotely almost periodic functions. This paper studies viscosity solutions of general Hamilton-Jacobi equations in the time remotely almost periodic case. Existence and uniqueness results are presented under usual hypotheses.

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