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The PDE approach developed earlier by the first three authors for $L^\infty$ estimates for fully non-linear equations on K\"ahler manifolds is shown to apply as well to Monge-Amp\`ere and Hessian equations on nef classes. In particular, one…

Differential Geometry · Mathematics 2024-03-13 Bin Guo , Duong H. Phong , Freid Tong , Chuwen Wang

In this paper, we investigate the interior H\"older regularity of solutions to the linearized Monge-Amp\`ere equation. In particular, we focus on the cases with singular right-hand side, which arise from the study of the semigeostrophic…

Analysis of PDEs · Mathematics 2024-05-24 Ling Wang

It is shown that geodesics in the space of K\"ahler potentials can be uniformly approximated by geodesics in the spaces of Bergman metrics. Two important tools in the proof are the Tian-Yau-Zelditch approximation theorem for K\"ahler…

Differential Geometry · Mathematics 2009-11-11 D. H. Phong , Jacob Sturm

Using Monge-Amp\`ere geometry, we study the singular structure of a class of nonlinear Monge-Amp\`ere equations in three dimensions, arising in geophysical fluid dynamics. We extend seminal earlier work on Monge-Amp\`ere geometry by…

Mathematical Physics · Physics 2023-03-29 Roberto D'Onofrio , Giovanni Ortenzi , Ian Roulstone , Volodya Rubtsov

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…

Complex Variables · Mathematics 2023-06-22 Nicholas McCleerey , Valentino Tosatti

We show that degenerate complex Monge-Ampere equations in a big cohomology class of a compact Kaehler manifold can be solved using a variational method independent of Yau's theorem. Our formulation yields in particular a natural…

Complex Variables · Mathematics 2009-07-28 R. J. Berman , S. Boucksom , V. Guedj , A. Zeriahi

The elliptic Monge-Amp\`ere equation is a fully nonlinear Partial Differential Equation that originated in geometric surface theory and has been applied in dynamic meteorology, elasticity, geometric optics, image processing and image…

Numerical Analysis · Mathematics 2011-06-06 Brittany D. Froese , Adam M. Oberman

The theory of viscosity solutions has been effective for representing and approximating weak solutions to fully nonlinear Partial Differential Equations (PDEs) such as the elliptic Monge-Amp\`ere equation. The approximation theory of…

Numerical Analysis · Mathematics 2012-12-05 Brittany D. Froese , Adam M. Oberman

Measure-theoretic slow entropy is a more refined invariant than the classical measure-theoretic entropy to characterize the complexity of dynamical systems with subexponential growth rates of distinguishable orbit types. In this paper we…

Dynamical Systems · Mathematics 2021-09-20 Shilpak Banerjee , Philipp Kunde , Daren Wei

We prove the existence and uniqueness of the solutions of some very general type of degenerate complex Monge-Amp\`ere equations. This type of equations is precisely what is needed in order to construct K\"ahler-Einstein metrics over…

Differential Geometry · Mathematics 2009-03-24 Jean-Pierre Demailly , Nefton Pali

In \cite{Ch91a} it was shown that the billiard ball map for the periodic Lorentz gas has infinite topological entropy. In this article we study the set of points with infinite Lyapunov exponents. Using the cell structure developed in…

Dynamical Systems · Mathematics 2016-09-06 N. I. Chernov , Serge Troubetzkoy

We generalize the notion of integral Menger curvature introduced by Gonzalez and Maddocks by decoupling the powers in the integrand. This leads to a new two-parameter family of knot energies $intM^{p,q}$. We classify finite-energy curves in…

Analysis of PDEs · Mathematics 2013-08-13 Simon Blatt , Philipp Reiter

Let $X$ be a compact complex manifold which admits a hermitian metric satisfying a curvature condition introduced by Guan-Li. Given a semipositive form $\theta$ with positive volume, we define the Monge-Amp\`ere operator for unbounded…

Complex Variables · Mathematics 2024-01-11 Mohammed Salouf

We prove a strong version of the comparison principle for bounded plurisubharmonic function on complex varieties. we then apply our main result to study convergence of Mong-Ampere mesures for bounded plurisubharmonic functions.

Complex Variables · Mathematics 2017-02-24 Nguyen Quang Dieu , Sanphet Ounheuan

This is an introduction to a particular class of auxiliary complex Monge-Amp\`ere equations which had been instrumental in $L^\infty$ estimates for fully non-linear equations and various questions in complex geometry. The essential…

Differential Geometry · Mathematics 2022-10-25 Bin Guo , Duong H. Phong

We use geometric methods to calculate a formula for the complex Monge-Amp\`ere measure $(dd^cV_K)^n$, for $K \Subset \RR^n \subset \CC^n$ a convex body and $V_K$ its Siciak-Zaharjuta extremal function. Bedford and Taylor had computed this…

Complex Variables · Mathematics 2007-05-23 D. Burns , N. Levenberg , S. Ma'u , Sz. Révész

We construct solutions to Monge-Amp\`ere equations whose Monge-Amp\`ere measures contain singular components supported on low codimensional sets. We also study the regularity of such solutions. To motivate our construction, we present…

Analysis of PDEs · Mathematics 2026-05-20 Arghya Rakshit , Aranya Sen

We introduce certain energy functionals to the complex Monge-Ampere equation over a bounded domain with inhomogeneous boundary condition, and use these functionals to show the convergence of the solution to the parabolic Monge-Ampere…

Analysis of PDEs · Mathematics 2007-05-23 Zuoliang Hou , Qi Li

We analyze certain parametrized families of one-dimensional maps with infinitely many critical points from the measure-theoretical point of view. We prove that such families have absolutely continuous invariant probability measures for a…

Dynamical Systems · Mathematics 2010-08-30 Vitor Araujo , Maria Jose Pacifico

Given an $n$-dimensional compact K\"ahler manifold, we continue our study of $m$-positivity in two ways. We first propose generalisations of the notions of pseudo-effective and big Bott-Chern cohomology classes of bidegree $(1,\,1)$ by…

Differential Geometry · Mathematics 2025-11-03 Sławomir Dinew , Dan Popovici