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Bochner-Riesz commutators for Grushin Operators

2025/05/22 by Md Nurul Molla, Molla, Md Nurul, Joydwip Singh +1
Mathematics · #42B15 #43A85 #Advanced Harmonic Analysis Research #Analysis of PDEs (math.AP) #Approximation Theory and Sequence Spaces #FOS: Mathematics #Holomorphic and Operator Theory

paper · pdf · doi:10.48550/arxiv.2505.16593

openalex publication_date 2025/05/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this paper, we study the boundedness of Bochner-Riesz commutator [b, Sα(L)](f) = b Sα(L)(f) - Sα(L)(bf) of a BMO\varrho(ℝd) function b and the Bochner-Riesz operator Sα(L) associated to the Grushin operator L on ℝd with d:= d1 +d2. We prove that for 1≤ p ≤ min \2d1/(d1 +2), 2(d2 +1)/(d2+3)\ and α> d(1/p - 1/2) - 1/2, if b ∈ BMO\varrho(ℝd), then [b, Sα(L)] is bounded on Lq(ℝd) whenever p < q < p'. Moreover, if b ∈ CMO\varrho(ℝd), then we show that [b, Sα(L)] is a compact operator on Lq(ℝd) in the same range.

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