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Pure and Applied Mathematics Quarterly
Volume 18 (2022)
Number 2
Special issue in honor of Joseph J. Kohn on the occasion of his 90th birthday
Guest Editors: J.E. Fornaess, Stanislaw Janeczko, Duong H. Phong, and Stephen S.T. Yau
Sup-norm estimates for $\overline{\partial}$
Pages: 531 – 571
DOI: https://dx.doi.org/10.4310/PAMQ.2022.v18.n2.a8
Authors
Abstract
We develop a method for proving sup-norm and Hölder estimates for $\overline{\partial}$ on wide class of finite type pseudoconvex domains in $\mathbb{C}^n$. A fundamental obstruction to proving sup-norm estimates is the possibility of singular complex curves with exceptionally high order of contact with the boundary. Our method handles this problem, and in $\mathbb{C}^3$, we prove sup-norm and Hölder estimates for all bounded, pseudoconvex domains with real-analytic boundary.
Keywords
finite type, bumping, Hölder estimates, sup-norm estimates, $\overline{\partial}$-equation
2010 Mathematics Subject Classification
32A26, 32T25
Berit Stensønes is supported by the Research Council of Norway, Grant number 240569/F20.
Received 22 March 2021
Received revised 8 October 2021
Accepted 9 November 2021
Published 13 May 2022