The Carleman convexification method for Hamilton-Jacobi equations

Le, Huynh P.N.; Le, Thuy T.; Nguyen, Loc H.

doi:10.1016/j.camwa.2024.02.021

Computers & Mathematics with Applications

2024

DOI: 10.1016/j.camwa.2024.02.021

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The Carleman convexification method for Hamilton-Jacobi equations

Huynh P.N. Le,

Thuy T. Le,

Loc H. Nguyen

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2024

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Determining initial conditions for nonlinear hyperbolic equations with time dimensional reduction and the Carleman contraction principle

Dang,

Nguyen,

2024

Inverse Problems

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This paper aims to determine the initial conditions for quasi-linear hyperbolic equations that include nonlocal elements. We suggest a method where we approximate the solution of the hyperbolic equation by truncating its Fourier series in the time domain with a polynomial-exponential basis. This truncation eﬀectively removes the time variable, transforming the problem into a system of quasi-linear elliptic equations. We refer to this technique as the “time dimensional reduction method.” To numerically solve this system comprehensively without the need for an accurate initial estimate, we used the newly developed Carleman contraction principle. We show the eﬃciency of our method through various numerical examples. The time dimensional reduction method stands out not only for its precise solutions but also for its remarkable speed in computation.

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Determining initial conditions for nonlinear hyperbolic equations with time dimensional reduction and the Carleman contraction principle

Dang,

Nguyen,

2024

Inverse Problems

View full text Add to dashboard Cite

show abstract

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The Carleman convexification method for Hamilton-Jacobi equations

Cited by 1 publication

References 46 publications

Determining initial conditions for nonlinear hyperbolic equations with time dimensional reduction and the Carleman contraction principle

Determining initial conditions for nonlinear hyperbolic equations with time dimensional reduction and the Carleman contraction principle

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