Results 1 to 10 of about 1,758 (174)

Information Processing in the Brain as Optimal Entropy Transport: A Theoretical Approach [PDF]

open access: yesEntropy, 2020
We consider brain activity from an information theoretic perspective. We analyze the information processing in the brain, considering the optimality of Shannon entropy transport using the Monge–Kantorovich framework.
Carlos Islas   +2 more
doaj   +2 more sources

Computing Three-Dimensional Freeform Reflectors with a Scattering Surface [PDF]

open access: yesEPJ Web of Conferences, 2023
We present a novel approach to computing reflectors with a scattering surface in illumination optics. A scattering model governed by a Fredholm integral equation is derived.
Kronberg Vì C.E.   +3 more
doaj   +1 more source

Asymptotic behavior of solutions to the Monge-Ampère equations with slow convergence rate at infinity

open access: yesAdvanced Nonlinear Studies, 2023
We consider the asymptotic behavior of solutions to the Monge-Ampère equations with slow convergence rate at infinity and fulfill previous results under faster convergence rate by Bao et al. [Monge-Ampère equation on exterior domains, Calc. Var PDE.
Liu Zixiao, Bao Jiguang
doaj   +1 more source

Design of optical surfaces conform the hyperbolic Monge-Ampère equation [PDF]

open access: yesEPJ Web of Conferences, 2022
We present a method for designing freeform optical surfaces for illumination optics. By the laws of reflection, refraction and conservation of energy, a fully nonlinear PDE, the Monge-Ampere equation, is derived for the optical surface.
Bertens M.W.M.C.   +3 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

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

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

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

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