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Oscillation and variation for the Riesz transform associated with Bessel operators

Published online by Cambridge University Press:  18 September 2018

Huoxiong Wu
Affiliation:
School of Mathematical Sciences, Xiamen University, Xiamen 361005, People's Republic of China ([email protected]; [email protected])
Dongyong Yang*
Affiliation:
School of Mathematical Sciences, Xiamen University, Xiamen 361005, People's Republic of China ([email protected]; [email protected])
Jing Zhang
Affiliation:
School of Mathematical Sciences, Xiamen University, Xiamen 361005, People's Republic of China and School of Mathematics and Statistics, Yili Normal College, Yining Xinjiang 835000, People's Republic of China ([email protected])
*
*Corresponding author.

Abstract

Let λ > 0 and let

be the Bessel operator on ℝ+ := (0,). We show that the oscillation operator 𝒪(RΔλ,) and variation operator 𝒱ρ(RΔλ,) of the Riesz transform RΔλ associated with Δλ are both bounded on Lp(ℝ+, dmλ) for p ∈ (1,), from L1(ℝ+, dmλ) to L1,∞(ℝ+, dmλ), and from L(ℝ+, dmλ) to BMO(ℝ+, dmλ), where ρ ∈ (2,) and dmλ(x) := x2λ dx. As an application, we give the corresponding Lp-estimates for β-jump operators and the number of up-crossings.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 2018 

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