Results 71 to 80 of about 1,758 (174)

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

open access: yes, 2022
This paper proposes a regularization of the Monge-Ampère equation in planar convex domains through uniformly elliptic Hamilton-Jacobi-Bellman equations.
Gallistl, Dietmar, Tran, Ngoc Tien
core   +1 more source

Geophysical Monge–Ampère-Type Equation: Symmetries and Exact Solutions

open access: yesMathematics
This paper studies a mixed PDE containing the second time derivative and a quadratic nonlinearity of the Monge–Ampère type in two spatial variables, which is encountered in geophysical fluid dynamics.
Andrei D. Polyanin, Alexander V. Aksenov
doaj   +1 more source

Partner Symmetries, Group Foliation and ASD Ricci-Flat Metrics without Killing Vectors

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We demonstrate how a combination of our recently developed methods of partner symmetries, symmetry reduction in group parameters and a new version of the group foliation method can produce noninvariant solutions of complex Monge-Ampère equation (CMA) and
Andrei A. Malykh, Mikhail B. Sheftel
doaj   +1 more source

Nontrivial convex solutions on a parameter of impulsive differential equation with Monge-Ampère operator

open access: yesBoundary Value Problems, 2017
The authors consider the impulsive differential equation with Monge-Ampère operator in the form of { ( ( u ′ ( t ) ) n ) ′ = λ n t n − 1 f ( − u ( t ) ) , t ∈ ( 0 , 1 ) , t ≠ t k , k = 1 , 2 , … , m , Δ ( u ′ ) n | t = t k = λ I k ( − u ( t k ) ) , k = 1
Xuemei Zhang, Meiqiang Feng
doaj   +1 more source

The Complex Monge-Ampère Equation [PDF]

open access: yes
In questa trattazione si studia la regolarità delle soluzioni viscose plurisubarmoniche dell’equazione di Monge-Ampère complessa. Si tratta di un’equazione alle derivate parziali del secondo ordine completamente non lineare il cui termine del secondo ...
Guidi, Chiara
core  

A fully nonlinear generalized Monge-Ampere PDE on a torus

open access: yesElectronic Journal of Differential Equations, 2014
We prove an existence result for a "generalized" Monge-Ampere equation, introduced in [11], under some assumptions on a flat complex 3-torus. As an application we prove the existence of Chern connections on certain kinds of holomorphic vector bundles ...
Vamsi P. Pingali
doaj  

Shaping Single Offset Reflector Antennas Using Local Axis-Displaced Confocal Quadrics

open access: yesInternational Journal of Antennas and Propagation, 2016
This work investigates a novel numerical procedure for the solution of an exact formulation for the Geometrical Optics synthesis of a single reflector antenna by simultaneously imposing Snell’s Law and Conservation of Energy in a tube of rays, yielding a
Rafael A. Penchel   +2 more
doaj   +1 more source

Convergence Rate of a Stable, Monotone and Consistent Scheme for the Monge-Ampère Equation

open access: yes, 2016
We prove a rate of convergence for smooth solutions of the Monge-Ampère equation of a stable, monotone and consistent discretization. We consider the Monge-Ampère equation with a small low order perturbation.
Gerard Awanou
core   +1 more source

The Obstacle Problem for Monge-Ampère Equation

open access: yes, 1997
We consider the obstacle problem for the degenerated Monge-Ampère equation. We prove the existence of the greatest viscosity sub-solution,and the C 1;1 -regularity. Then the solution satisfies the concave uniformly elliptic equation.
Ki-Ahm Lee
core  

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