Abstract
We consider Banach valued Hardy and BMO spaces in the Bessel setting. Square functions associated with Poisson semigroups for Bessel operators are defined by using fractional derivatives. If \({\mathbb{B}}\) is a UMD Banach space we obtain for \({\mathbb{B}}\) -valued Hardy and BMO spaces equivalent norms involving γ-radonifying operators and square functions. We also establish characterizations of UMD Banach spaces by means of Hardy and BMO-boundedness properties of g-functions associated to Bessel–Poisson semigroup.
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J. J. Betancor, A. J. Castro and L. Rodríguez-Mesa were partially supported by MTM2010/17974. A. J. Castro was also supported by a FPU grant from the Government of Spain.
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Betancor, J.J., Castro, A.J. & Rodríguez-Mesa, L. UMD-Valued Square Functions Associated with Bessel Operators in Hardy and BMO Spaces. Integr. Equ. Oper. Theory 81, 319–374 (2015). https://doi.org/10.1007/s00020-014-2202-5
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DOI: https://doi.org/10.1007/s00020-014-2202-5