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Given a compact K\"ahler manifold $X$, a quasiplurisubharmonic function is called a Green function with pole at $p\in X$ if its Monge-Amp\`ere measure is supported at $p$. We study in this paper the existence and properties of such…

Complex Variables · Mathematics 2009-07-28 Dan Coman , Vincent Guedj

The general purpose of this paper is to investigate the notion of "pluriharmonics" for the general potential theory associated to a convex cone $F\subset {\rm Sym}^2({\bf R}^n)$. For such $F$ there exists a maximal linear subspace $E\subset…

Analysis of PDEs · Mathematics 2019-08-29 F. Reese Harvey , H. Blaine Lawson,

We prove a number of results related to the size and propagation of boundary pluripolar sets, the exceptional sets for the Dirichlet problem for the complex Monge--Amp\`ere equation. We extend Stout's result that peak sets on strictly…

Complex Variables · Mathematics 2026-02-12 Mårten Nilsson

In this paper, we first show that a union of upper-level sets associated to fibrewise Lelong numbers of plurisubharmonic functions is in general a pluripolar subset. Then we obtain analyticity theorems for a union of sub-level sets…

Complex Variables · Mathematics 2024-05-14 Bojie He

Pseudo-holomorphic curves on almost complex manifolds have been much more intensely studied than their "dual" objects, the plurisubharmonic functions. These functions are defined classically by requiring that the restriction to each…

Complex Variables · Mathematics 2017-12-12 F. Reese Harvey , H. Blaine Lawson

Let $(X,\omega)$ be a compact Hermitian manifold of complex dimension $n$. Let $\beta$ be a smooth real closed $(1,1)$ form such that there exists a function $\rho \in \mbox{PSH}(X,\beta)\cap L^{\infty}(X)$. We study the range of the…

Complex Variables · Mathematics 2024-04-05 Yinji Li , Zhiwei Wang , Xiangyu Zhou

In this article, we solve the strong openness conjecture on the multiplier ideal sheaves for the plurisubharmonic functions posed by Demailly. We prove two conjectures about the growth of the volumes of the sublevel sets of plurisubharmonic…

Complex Variables · Mathematics 2014-01-29 Qi'an Guan , Xiangyu Zhou

A version of Gromov's cup product lemma in which one factor is the (1,0)-part of the differential of a continuous plurisubharmonic function is obtained. As an application, it is shown that a connected noncompact complete Kaehler manifold…

Complex Variables · Mathematics 2017-04-24 Terrence Napier , Mohan Ramachandran

Let $\Omega_1,\Omega_2$ be two disjoint open sets in $\mathbf C^n$ whose boundaries share a smooth real hypersurface $M$ as relatively open subsets. Assume that $\Omega_i$ is equipped with a complex structure $J^i$ which is smooth up to…

Complex Variables · Mathematics 2010-08-09 Florian Bertrand , Xianghong Gong , Jean-Pierre Rosay

The aim of this paper is to study the residual Monge-Amp\`{e}re mass of a plurisubharmonic function with isolated singularity at the origin in $\mathbb{C}^2$. We prove that the residual mass is zero if its Lelong number is zero at the…

Complex Variables · Mathematics 2023-06-13 Long Li

We solve the Dirichlet problem for Monge-Amp\`ere equation for $(n-1)$-PSH functions possibly with degenerate right-hand side, through deriving a quantitative version of boundary estimate under the assumption of $(n-1)$-PSH subsolutions. In…

Analysis of PDEs · Mathematics 2022-03-15 Rirong Yuan

We study swept-out Monge-Ampere measures of plurisubharmonic functions and boundary values related to these measures.

Complex Variables · Mathematics 2008-05-13 Urban Cegrell , Berit Kemppe

Given a bounded open subset $\Omega$ and closed subsets $A,B$ of $\mathbb{R}^k$, we discuss when an estimate $u(x)\le g(dist(x,A\cup B))$, $x\in\Omega\setminus(A\cup B)$, for a function $u$ subharmonic on $\Omega\setminus B$, implies that…

Complex Variables · Mathematics 2026-02-27 Glenier Bello , Dmitry Yakubovich

For a compact subset $K$ of the complex plane $\mathbb C,$ let $C(K)$ denote the algebra of continuous functions on $K$. For an open subset $U \subset K,$ let $A(K,U) \subset C(K)$ be the algebra of functions that are analytic in $U.$ We…

Functional Analysis · Mathematics 2023-08-24 Liming Yang

This paper is concerned with the $L^p$ integrability of $N$-harmonic functions with respect to the standard weights $(1-|x|^2)^{\alpha}$ on the unit ball $\mathbb{B}$ of $\mathbb{R}^n$, $n\geq 2$. More precisely, our goal is to determine…

Complex Variables · Mathematics 2020-08-11 Congwen Liu , Antti Perala , Jiajia Si

We generalize an inequality for mixed Monge-Amp\`ere measures. We also give an example that shows that our assumptions are sharp. The corresponding result in the setting of compact K\"ahler manifold is also discussed.

Complex Variables · Mathematics 2007-05-23 Slawomir Dinew

We study the Monge-Amp\` ere operator within the framework of Dinh-Sibony's intersection theory defined via density currents. We show that if $u$ is a plurisubharmonic function belonging to the Blocki-Cegrell class, then the Dinh-Sibony…

Complex Variables · Mathematics 2021-06-09 Dinh Tuan Huynh , Lucas Kaufmann , Duc-Viet Vu

A $C^2$ function on $\mathbb{R}^n$ is called strictly $(n-1)$-convex if the sum of any $n-1$ eigenvalues of its Hessian is positive. In this paper, we establish a global $C^2$ estimates to the Monge-Amp\`ere equation for strictly…

Analysis of PDEs · Mathematics 2019-03-14 Bin Deng

We show that every strictly pseudoconvex domain $\Omega$ with smooth boundary in a complex manifold $\mathcal{M}$ admits a global defining function, i.e., a smooth plurisubharmonic function $\varphi \colon U \to \mathbb R$ defined on an…

Complex Variables · Mathematics 2014-08-12 Tobias Harz , Nikolay Shcherbina , Giuseppe Tomassini

We demonstrate that the set $L^\infty(X, [-1,1])$ of all measurable functions over a Borel measure space $(X, \mathcal B, \mu )$ with values in the unit interval is typically non-polyhedric when interpreted as a subset of a dual space. Our…

Optimization and Control · Mathematics 2017-11-08 Constantin Christof , Gerd Wachsmuth