Results 21 to 30 of about 5,226,204 (223)

An adaptive least-squares algorithm for the elliptic Monge–Ampère equation

open access: yesComptes Rendus. Mécanique, 2023
We address the numerical solution of the Dirichlet problem for the two-dimensional elliptic Monge–Ampère equation using a least-squares/relaxation approach.
Caboussat, Alexandre   +2 more
doaj   +1 more source

Freeform design of a two-reflector system to collimate and shape a point source distribution [PDF]

open access: yesEPJ Web of Conferences, 2021
We present a method to design a freeform two-reflector system to collimate and shape a beam from a point source. An important generalization compared to previous research is that the output beam can be in an arbitrary direction.
van Roosmalen A.H.   +3 more
doaj   +1 more source

Convergence of a regularized finite element discretization of the two-dimensional Monge-Ampère equation [PDF]

open access: yesMathematics of Computation, 2021
This paper proposes a regularization of the Monge–Ampère equation in planar convex domains through uniformly elliptic Hamilton–Jacobi–Bellman equations.
D. Gallistl, Ngoc Tien Tran
semanticscholar   +1 more source

Refined second boundary behavior of the unique strictly convex solution to a singular Monge-Ampère equation

open access: yesAdvances in Nonlinear Analysis, 2021
In this paper, we establish the second boundary behavior of the unique strictly convex solution to a singular Dirichlet problem for the Monge-Ampère ...
Wan Haitao, Shi Yongxiu, Liu Wei
doaj   +1 more source

On some exact solutions of heavenly equations in four dimensions

open access: yesAIP Advances, 2020
Some new classes of exact solutions (so-called functionally invariant solutions) of the elliptic and hyperbolic complex Monge–Ampère equations and of the second heavenly equation are found. Besides, non-invariance of the found classes of solutions of the
Ł. T. Stȩpień
doaj   +1 more source

The connection between the phase problem in optics, focusing of radiation, and the Monge–Kantorovich problem [PDF]

open access: yesКомпьютерная оптика, 2018
We discuss the use of variational principles for solving the phase problem in optics. In this paper, we consider the connection between four fundamental problems: the phase problem in optics, the inverse problem of focusing coherent radiation, the Monge –
Nikolay Kazanskiy   +3 more
doaj   +1 more source

Entire Solutions of Cauchy Problem for Parabolic Monge–Ampère Equations

open access: yesAdvanced Nonlinear Studies, 2020
In this paper, we study the Cauchy problem of the parabolic Monge–Ampère ...
Dai Limei, Bao Jiguang
doaj   +1 more source

Regularity of solutions to the quaternionic Monge-Ampère equation [PDF]

open access: yes, 2020
The regularity of solutions to the Dirichlet problem for the quaternionic Monge-Ampère equation is discussed. We prove that the solution to the Dirichlet problem is Hölder continuous under some conditions on the boundary values and the quaternionic Monge-
Kołodziej, Sławomir, Sroka, Marcin
core   +1 more source

Singular structures in solutions to the Monge-Ampère equation with point masses

open access: yesMathematics in Engineering, 2023
We construct new examples of Monge-Ampère metrics with polyhedral singular structures, motivated by problems related to the optimal transport of point masses and to mirror symmetry.
Connor Mooney, Arghya Rakshit
semanticscholar   +1 more source

Global C2,α estimates for the Monge-Ampère equation on polygonal domains in the plane

open access: yesAmerican Journal of Mathematics, 2023
:We classify global solutions of the Monge-Amp\\`ere equation $\\det D^2 u=1$ on the first quadrant in the plane with quadratic boundary data. As an application, we obtain global $C^\{2,\\alpha\}$ estimates for the non-degenerate Monge-Amp\\`ere equation
N. Q. Le, O. Savin
semanticscholar   +1 more source

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