Niu, Pengcheng; Luo, Xuebo Spectral properties of second order differential operators on two-step nilpotent Lie groups. (English) Zbl 0953.22007 J. Partial Differ. Equations 13, No. 1, 1-10 (2000). Reviewer: R.Felix (Eichstätt) MSC: 22E25 35P20 47F05 22E27 22E30 PDFBibTeX XMLCite \textit{P. Niu} and \textit{X. Luo}, J. Partial Differ. Equations 13, No. 1, 1--10 (2000; Zbl 0953.22007)
Ma, Yulan; Luo, Xuebo Fundamental solution for the operator \(L^m\) on the Heisenberg group \(H^n\). (English) Zbl 0901.47030 Adv. Math., Beijing 26, No. 4, 377-378 (1997). Reviewer: Hou Zixin (Tianjin) MSC: 47E05 PDFBibTeX XMLCite \textit{Y. Ma} and \textit{X. Luo}, Adv. Math., Beijing 26, No. 4, 377--378 (1997; Zbl 0901.47030)
Luo, Xuebo; Niu, Pengcheng On spectrum of the sub-Laplacian on two step nilpotent Lie group. (Chinese. English summary) Zbl 0909.47036 Acta Math. Sin. 40, No. 5, 659-664 (1997). MSC: 47F05 58J50 PDFBibTeX XMLCite \textit{X. Luo} and \textit{P. Niu}, Acta Math. Sin. 40, No. 5, 659--664 (1997; Zbl 0909.47036)