Abstract
Starting with the relatively simple observation that the variational estimates of the commutators of the standard Calderón-Zygmund operators with the bounded mean oscillation (BMO) functions can be obtained from their weighted variational estimates, we establish similar variational estimates for the commutators of the BMO functions with rough singular integrals, which do not admit any weighted variational estimates. The proof involves several Littlewood-Paley-type inequalities with the commutators as well as Bony decomposition and related para-product estimates.
| Original language | English |
|---|---|
| Pages (from-to) | 2437-2460 |
| Number of pages | 24 |
| Journal | Science China Mathematics |
| Volume | 64 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2021 |
| Externally published | Yes |
Keywords
- 42B20
- 42B25
- 46E30
- averaging operator
- commutator
- rough kernel
- singular integral
- variational inequality
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