English

Little Hankel Operators Between Vector-Valued Bergman Spaces on the Unit Ball

Complex Variables 2020-12-22 v1 Functional Analysis

Abstract

In this paper, we study the boundedness and the compactness of the little Hankel operators hbh_b with operator-valued symbols bb between different weighted vector-valued Bergman spaces on the open unit ball Bn\mathbb{B}_n in Cn.\mathbb{C}^n. More precisely, given two complex Banach spaces X,Y,X,Y, and 0<p,q1,0 < p,q \leq 1, we characterize those operator-valued symbols b:BnL(X,Y)b: \mathbb{B}_{n}\rightarrow \mathcal{L}(\overline{X},Y) for which the little Hankel operator hb:Aαp(Bn,X)Aαq(Bn,Y),h_{b}: A^p_{\alpha}(\mathbb{B}_{n},X) \longrightarrow A^q_{\alpha}(\mathbb{B}_{n},Y), is a bounded operator. Also, given two reflexive complex Banach spaces X,YX,Y and 1<pq<,1 < p \leq q < \infty, we characterize those operator-valued symbols b:BnL(X,Y)b: \mathbb{B}_{n}\rightarrow \mathcal{L}(\overline{X},Y) for which the little Hankel operator hb:Aαp(Bn,X)Aαq(Bn,Y),h_{b}: A^p_{\alpha}(\mathbb{B}_{n},X) \longrightarrow A^q_{\alpha}(\mathbb{B}_{n},Y), is a compact operator.

Keywords

Cite

@article{arxiv.2012.10934,
  title  = {Little Hankel Operators Between Vector-Valued Bergman Spaces on the Unit Ball},
  author = {David Békollé and Hugues Olivier Defo and Edgar L. Tchoundja and Brett D. Wick},
  journal= {arXiv preprint arXiv:2012.10934},
  year   = {2020}
}

Comments

v1: 40 pages

R2 v1 2026-06-23T21:06:32.152Z