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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Hardy spaces meet harmonic weights
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by Marcin Preisner, Adam Sikora and Lixin Yan PDF
Trans. Amer. Math. Soc. 375 (2022), 6417-6451 Request permission

Abstract:

We investigate the Hardy space $H^1_L$ associated with a self-adjoint operator $L$ defined in a general setting by Hofmann, Lu, Mitrea, Mitrea, and Yan [Mem. Amer. Math. Soc. 214 (2011), pp. vi+78]. We assume that there exists an $L$-harmonic non-negative function $h$ such that the semigroup $\exp (-tL)$, after applying the Doob transform related to $h$, satisfies the upper and lower Gaussian estimates. Under this assumption we describe an illuminating characterisation of the Hardy space $H^1_L$ in terms of a simple atomic decomposition associated with the $L$-harmonic function $h$. Our approach also yields a natural characterisation of the $BMO$-type space corresponding to the operator $L$ and dual to $H^1_L$ in the same circumstances.

The applications include surprisingly wide range of operators, such as: Laplace operators with Dirichlet boundary conditions on some domains in ${\mathbb {R}^n}$, Schrödinger operators with certain potentials, and Bessel operators.

References
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Additional Information
  • Marcin Preisner
  • Affiliation: Instytut Matematyczny, Uniwersytet Wrocławski, pl. Grunwaldzki 2/4, 50-384 Wrocław, Poland
  • MR Author ID: 887621
  • ORCID: 0000-0002-3522-9580
  • Email: marcin.preisner@uwr.edu.pl
  • Adam Sikora
  • Affiliation: Department of Mathematics, Macquarie University, NSW 2109, Australia
  • MR Author ID: 292432
  • ORCID: 0000-0002-9855-3249
  • Email: adam.sikora@mq.edu.au
  • Lixin Yan
  • Affiliation: Department of Mathematics, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, People’s Republic of China
  • MR Author ID: 618148
  • Email: mcsylx@mail.sysu.edu.cn
  • Received by editor(s): December 10, 2020
  • Received by editor(s) in revised form: November 28, 2021, and February 15, 2022
  • Published electronically: July 13, 2022
  • Additional Notes: The first and second authors were supported by Australian Research Council Discovery Grant DP DP160100941 and DP200101065. The first author was supported by the grant No. 2017/25/B/ST1/00599 from National Science Centre (Narodowe Centrum Nauki), Poland. The third author was supported by the grant Nos. 11521101 and 11871480 from the NNSF of China.
  • © Copyright 2022 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 375 (2022), 6417-6451
  • MSC (2020): Primary 42B30, 42B35, 47B38
  • DOI: https://doi.org/10.1090/tran/8695
  • MathSciNet review: 4474897