Article contents
WEIGHTED BESOV AND TRIEBEL–LIZORKIN SPACES ASSOCIATED WITH OPERATORS AND APPLICATIONS
Published online by Cambridge University Press: 26 February 2020
Abstract
Let $X$ be a space of homogeneous type and
$L$ be a nonnegative self-adjoint operator on
$L^{2}(X)$ satisfying Gaussian upper bounds on its heat kernels. In this paper, we develop the theory of weighted Besov spaces
${\dot{B}}_{p,q,w}^{\unicode[STIX]{x1D6FC},L}(X)$ and weighted Triebel–Lizorkin spaces
${\dot{F}}_{p,q,w}^{\unicode[STIX]{x1D6FC},L}(X)$ associated with the operator
$L$ for the full range
$0<p,q\leqslant \infty$,
$\unicode[STIX]{x1D6FC}\in \mathbb{R}$ and
$w$ being in the Muckenhoupt weight class
$A_{\infty }$. Under rather weak assumptions on
$L$ as stated above, we prove that our new spaces satisfy important features such as continuous characterizations in terms of square functions, atomic decompositions and the identifications with some well-known function spaces such as Hardy-type spaces and Sobolev-type spaces. One of the highlights of our result is the characterization of these spaces via noncompactly supported functional calculus. An important by-product of this characterization is the characterization via the heat kernel for the full range of indices. Moreover, with extra assumptions on the operator
$L$, we prove that the new function spaces associated with
$L$ coincide with the classical function spaces. Finally we apply our results to prove the boundedness of the fractional power of
$L$, the spectral multiplier of
$L$ in our new function spaces and the dispersive estimates of wave equations.
- Type
- Differential Equations
- Information
- Creative Commons
- This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Copyright
- © The Author(s) 2020
References
- 26
- Cited by