Kobayashi, Toshiyuki; Nilsson, Andreas; Sato, Fumihiro Maximal semigroup symmetry and discrete Riesz transforms. (English) Zbl 1345.42008 J. Aust. Math. Soc. 100, No. 2, 216-240 (2016). Reviewer: Krzysztof Stempak (Wrocław) MSC: 42B15 42B99 42B20 22E46 PDFBibTeX XMLCite \textit{T. Kobayashi} et al., J. Aust. Math. Soc. 100, No. 2, 216--240 (2016; Zbl 1345.42008) Full Text: DOI
Sanjay, P. K.; Thangavelu, Sundaram Revisiting Riesz transforms on Heisenberg groups. (English) Zbl 1258.22004 Rev. Mat. Iberoam. 28, No. 4, 1091-1108 (2012). Reviewer: Javier Soria (Barcelona) MSC: 22E30 43A85 47B35 PDFBibTeX XMLCite \textit{P. K. Sanjay} and \textit{S. Thangavelu}, Rev. Mat. Iberoam. 28, No. 4, 1091--1108 (2012; Zbl 1258.22004) Full Text: DOI arXiv
Kobayashi, Toshiyuki; Nilsson, Andreas Indefinite higher Riesz transforms. (English) Zbl 1187.42003 Ark. Mat. 47, No. 2, 331-344 (2009). Reviewer: Takeshi Kawazoe (Yokohama) MSC: 42B15 22E30 22E45 43A85 PDFBibTeX XMLCite \textit{T. Kobayashi} and \textit{A. Nilsson}, Ark. Mat. 47, No. 2, 331--344 (2009; Zbl 1187.42003) Full Text: DOI