English
Related papers

Related papers: An Ohsawa-Takegoshi-type $L^2$ extension for upper…

200 papers

We establish a new generalization of an $L^2$ extension theorem of Ohsawa-Takegoshi type. The improvement in the theorem is that it allows the usual curvature assumptions to be significantly weakened in certain favorable settings. The…

Complex Variables · Mathematics 2014-07-28 Dror Varolin

We prove an extension theorem of "Ohsawa-Takegoshi type" for Dolbeault q$-classes of cohomology ($q\geq 1$) on smooth compact hypersurfaces in a weakly pseudoconvex K\"ahler manifold

Complex Variables · Mathematics 2010-06-28 Vincent Koziarz

In this paper, we solve the optimal constant problem in the setting of Ohsawa's generalized $L^{2}$ extension theorem. As applications, we prove a conjecture of Ohsawa and the extended Suita conjecture, we also establish some relations…

Complex Variables · Mathematics 2015-06-23 Qi'an Guan , Xiangyu Zhou

Two properties of plurisubharmonic functions are proven. The first result is a Skoda type integrability theorem with respect to a Monge-Amp\`ere mass with H\"older continuous potential. The second one says that locally, a p.s.h. function is…

Complex Variables · Mathematics 2014-09-30 Alano Ancona , Lucas Kaufmann

We prove an Ohsawa-Takegoshi-type extension theorem on the Berkovich closed unit disc over a complete non-Archimedean field. As an application, we establish a non-Archimedean analogue of Demailly's regularization theorem for…

Algebraic Geometry · Mathematics 2018-05-09 Matthew Stevenson

In this paper, we use Takeuchi's Theorem to show that for every Lipschitz pseudoconvex domain $\Omega$ in $\mathbb{CP}^n$ there exists a Lipschitz defining function $\rho$ and an exponent $0<\eta<1$ such that $-(-\rho)^\eta$ is strictly…

Complex Variables · Mathematics 2015-10-14 Phillip S. Harrington

In the present article, we obtain an optimal support function of weighted $L^2$ integrations on superlevel sets of psh weights, which implies the strong openness property of multiplier ideal sheaves.

Complex Variables · Mathematics 2022-10-18 Qi'an Guan , Zheng Yuan

We establish a Skoda-type $L^2$ division theorem for $L^2$-optimal pairs, using a technique that combines a new Bochner-type inequality derived from the $L^2$-optimal conditions and Skoda's basic inequality. As applications, we provide some…

Complex Variables · Mathematics 2026-02-25 Zhuo Liu , Xujun Zhang

We find a precise relationship between the minimal extensions in $L^2$ and $L^p$ Ohsawa-Takegoshi extension theorems. This relationship also gives another proof to the $L^p$ version of the Ohsawa-Takegoshi extension theorem, which is…

Complex Variables · Mathematics 2023-08-17 Yuanpu Xiong

In this paper, we prove an $L^2$ extension theorem with optimal estimate in a precise way, which implies optimal estimate versions of various well-known $L^2$ extension theorems. As applications, we give proofs of a conjecture of Suita on…

Complex Variables · Mathematics 2014-02-03 Qi'an Guan , Xiangyu Zhou

With a view to proving the conjecture of "dlt extension" related to the abundance conjecture, a sequence of potential candidates for replacing the Ohsawa measure in the Ohsawa-Takegoshi $L^2$ extension theorem, called the "lc-measures",…

Complex Variables · Mathematics 2021-07-13 Tsz On Mario Chan , Young-Jun Choi

We prove a Liouville theorem for the plurisubharmonic functions on complete Kaelher manifolds. As the applications, we prove a splitting theorem for complete Kaehler manifolds with nonnegative biscetional curvature in terms of the linear…

Differential Geometry · Mathematics 2007-05-23 Lei Ni , Luen-Fai Tam

We study the following optimal $L^2$ extension problem of openness type: given a complex manifold $M$, a closed subvariety $S\subset M$ and a holomorphic vector bundle $E\rightarrow M$, for any $L^2$ holomorphic section $f$ defined on some…

Complex Variables · Mathematics 2024-05-22 Wang Xu , Xiangyu Zhou

In this article our main result is a more complete version of the statements obtained in {\rm [6]}. One of the important technical point of our proof is an $\displaystyle L^{2\over m}$ extension theorem of Ohsawa-Takegoshi type, which is…

Algebraic Geometry · Mathematics 2014-09-21 Bo Berndtsson , Mihai Păun

In this article, we establish a support function of the weighted $L^2$ integrations on the superlevel sets of the weights with optimal asymptoticity near the positive infinity, which is an analogue of the truth of Demailly's strong openness…

Complex Variables · Mathematics 2017-05-05 Qi'an Guan , Zhenqian Li , Jiafu Ning

With a view to prove an Ohsawa-Takegoshi type $L^2$ extension theorem with $L^2$ estimates given with respect to the log-canonical (lc) measures, a sequence of measures each supported on lc centres of specific codimension defined via…

Complex Variables · Mathematics 2022-02-04 Tsz On Mario Chan

Given a monotone convex function on the space of essentially bounded random variables with the Lebesgue property (order continuity), we consider its extension preserving the Lebesgue property to as big solid vector space of random variables…

Functional Analysis · Mathematics 2014-02-20 Keita Owari

The purpose of this note is to show that the di-bar-estimate which is needed in the Ohsawa-Takegoshi Extension Theorem [6] is a direct consequence of the Hormander-Kohn-Morrey weigthed inequality. In this inequality, the Donnelly-Fefferman…

Complex Variables · Mathematics 2015-05-05 Luca Baracco

We prove an extension theorem for effective plt pairs $(X,S+B)$ of non-negative Kodaira dimension $\kappa (K_X+S+B)\geq 0$. The main new ingredient is a refinement of the Ohsawa-Takegoshi $L^2$ extension theorem involving singular hermitian…

Algebraic Geometry · Mathematics 2010-12-22 Jean-Pierre Demailly , Christopher D. Hacon , Mihai Paun

The Olkin-Baker functional equation is closely related to the celebrated Lukacs characterization of the gamma distribution. Its deeper understanding is essential to settle a challenging question of multivariate extensions of the Lukacs…

Probability · Mathematics 2012-05-15 Roman Ger , Jolanta Misiewicz , Jacek Wesolowski