Results 21 to 30 of about 56,245 (97)

Real Monge-Ampere equations and Kahler-Ricci solitons on toric log Fano varieties [PDF]

open access: yes, 2012
We show, using a direct variational approach, that the second boundary value problem for the Monge-Amp\`ere equation in R^n with exponential non-linearity and target a convex body P is solvable iff 0 is the barycenter of P.
Berman, Robert J., Berndtsson, Bo
core   +4 more sources

On sharp lower bounds for Calabi type functionals and destabilizing properties of gradient flows

open access: yes, 2020
Let $X$ be a compact K\"ahler manifold with a given ample line bundle $L$. In \cite{Don05}, Donaldson proved that the Calabi energy of a K\"ahler metric in $c_1(L)$ is bounded from below by the supremum of a normalized version of the minus Donaldson ...
Xia, Mingchen
core   +2 more sources

Numerical solution of the simple Monge–Ampère equation with nonconvex dirichlet data on non-convex domains [PDF]

open access: yes, 2017
The existence of a unique numerical solution of the semi-Lagrangian method for the simple Monge-Ampere equation is known independently of the convexity of the domain or Dirichlet boundary data - when the Monge-Ampere equation is posed as a Bellman ...
Jensen, Max
core   +2 more sources

Functions dividing their Hessian determinants and affine spheres [PDF]

open access: yes, 2016
The nonzero level sets of a homogeneous, logarithmically homogeneous, or translationally homogeneous function are affine spheres if and only if the Hessian determinant of the function is a multiple of a power or an exponential of the function.
Fox, Daniel J. F.
core   +1 more source

A JKO splitting scheme for Kantorovich-Fisher-Rao gradient flows [PDF]

open access: yes, 2016
In this article we set up a splitting variant of the JKO scheme in order to handle gradient flows with respect to the Kantorovich-Fisher-Rao metric, recently introduced and defined on the space of positive Radon measure with varying masses.
Ambrosio L.   +7 more
core   +2 more sources

Attractors and Finite‐Dimensional Behaviour in the 2D Navier‐Stokes Equations

open access: yesInternational Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
The purpose of this review is to give a broad outline of the dynamical systems approach to the two‐dimensional Navier‐Stokes equations. This example has led to much of the theory of infinite‐dimensional dynamical systems, which is now well developed.
James C. Robinson   +3 more
wiley   +1 more source

Parabolic Monge-Ampere equations giving rise to a free boundary: The worn stone model

open access: yes, 2015
This paper deals with several qualitative properties of solutions of some parabolic equations associated to the Monge--Ampere operator arising in suitable formulations of the Gauss curvature flow and the worn stone problems.
G. Díaz, J. I. Díaz
semanticscholar   +1 more source

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

open access: yesAbstract and Applied Analysis, Volume 2013, Issue 1, 2013., 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 unique.
Juan Wang   +3 more
wiley   +1 more source

Viscosity solutions of fully nonlinear functional parabolic PDE

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2005, Issue 22, Page 3539-3550, 2005., 2005
By the technique of coupled solutions, the notion of viscosity solutions is extended to fully nonlinear retarded parabolic equations. Such equations involve many models arising from optimal control theory, economy and finance, biology, and so forth. The comparison principle is shown.
Liu Wei-an, Lu Gang
wiley   +1 more source

Convergence of the weak K\"ahler-Ricci Flow on manifolds of general type

open access: yes, 2019
We study the K\"ahler-Ricci flow on compact K\"ahler manifolds whose canonical bundle is big. We show that the normalized K\"ahler-Ricci flow has long time existence in the viscosity sense, is continuous in a Zariski open set, and converges to the unique
Tô, Tat Dat
core   +1 more source

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