Sharper estimates of Ohsawa--Takegoshi $L^2$-extension theorem in higher dimensional case

Shota Kikuchi

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arXiv · 2102.01911

Sharper estimates of Ohsawa--Takegoshi $L^2$-extension theorem in higher dimensional case

Shota Kikuchi

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Abstract

Hosono obtained sharper estimates of the Ohsawa--Takegoshi $L^2$-extention theorem by allowing the constant depending on the weight function for a domain in $\mathbb{C}$. In this article, we show the higher dimensional case of sharper estimates of the Ohsawa--Takegoshi $L^2$-extention theorem. To prove the higher dimensional case of them, we establish an analogue of Berndtsson--Lempert type $L^2$-extension theorem by using the pluricomplex Green functions with poles along subvarieties. As a special case, we consider the sharper estimates in terms of the Azukawa pseudometric and show that the higher dimensional case of sharper estimate provides the $L^2$-minimum extension for radial case.

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Shota Kikuchi. 2021-02-03. Sharper estimates of Ohsawa--Takegoshi $L^2$-extension theorem in higher dimensional case. https://arxiv.org/abs/2102.01911

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