Results 11 to 20 of about 159 (135)

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

Geodesics in the space of relatively Kähler metrics

open access: yesJournal of the London Mathematical Society, Volume 108, Issue 3, Page 1036-1081, September 2023., 2023
Abstract We derive the geodesic equation for relatively Kähler metrics on fibrations and prove that any two such metrics with fibrewise constant scalar curvature are joined by a unique smooth geodesic. We then show convexity of the log‐norm functional for this setting along geodesics, which yields simple proofs of Dervan and Sektnan's uniqueness result
Michael Hallam
wiley   +1 more source

Pluricomplex Green's functions and Fano manifolds [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2019
We show that if a Fano manifold does not admit Kahler-Einstein metrics then the Kahler potentials along the continuity method subconverge to a function with analytic singularities along a subvariety which solves the homogeneous complex Monge-Ampere ...
Nicholas McCleerey, Valentino Tosatti
doaj   +1 more source

On symmetry reduction and some classes of invariant solutions of the (1+3)-dimensional homogeneous Monge-Ampère equation

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
We study the relationship between structural properties of the two-dimensional nonconjugate subalgebras of the same rank of the Lie algebra of the Poincaré group P(1,4) and the properties of reduced equations for the (1+3)-dimensional homogeneous Monge ...
Vasyl Fedorchuk, Volodymyr Fedorchuk
doaj   +1 more source

Existence and Uniqueness of Green's Functions to Nonlinear Yamabe Problems

open access: yesCommunications on Pure and Applied Mathematics, Volume 76, Issue 8, Page 1554-1607, August 2023., 2023
Abstract For a given finite subset S of a compact Riemannian manifold (M,g) whose Schouten curvature tensor belongs to a given cone, we establish a necessary and sufficient condition for the existence and uniqueness of a conformal metric on M\S such that each point of S corresponds to an asymptotically flat end and that the Schouten tensor of the ...
Yanyan Li, Luc Nguyen
wiley   +1 more source

Generalized Liouville theorem for viscosity solutions to a singular Monge-Ampère equation

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we study the asymptotic behaviour at infinity for viscosity solutions to a singular Monge-Ampère equation in half space from affine geometry.
Jian Huaiyu, Wang Xianduo
doaj   +1 more source

Massively parallel computation of globally optimal shortest paths with curvature penalization

open access: yesConcurrency and Computation: Practice and Experience, Volume 35, Issue 2, 25 January 2023., 2023
Abstract We address the computation of paths globally minimizing an energy involving their curvature, with given endpoints and tangents at these endpoints, according to models known as the Reeds‐Shepp car (reversible and forward variants), the Euler‐Mumford elasticae, and the Dubins car. For that purpose, we numerically solve degenerate variants of the
Jean‐Marie Mirebeau   +4 more
wiley   +1 more source

The Initial and Neumann Boundary Value Problem for a Class Parabolic Monge-Ampère Equation

open access: yesAbstract and Applied Analysis, 2013
We consider the existence, uniqueness, and asymptotic behavior of a classical solution to the initial and Neumann boundary value problem for a class nonlinear parabolic equation of Monge-Ampère type. We show that such solution exists for all times and is
Juan Wang, Jinlin Yang, Xinzhi Liu
doaj   +1 more source

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