Pathak, Ram S.; Pandey, Pradip K. Sobolev type spaces associated with Bessel operators. (English) Zbl 0903.46031 J. Math. Anal. Appl. 215, No. 1, 95-111 (1997). Reviewer: H.Triebel (Jena) MSC: 46E35 44A15 PDFBibTeX XMLCite \textit{R. S. Pathak} and \textit{P. K. Pandey}, J. Math. Anal. Appl. 215, No. 1, 95--111 (1997; Zbl 0903.46031) Full Text: DOI
Pathak, R. S. Quasi-analyticity for hypoelliptic operators. (English) Zbl 0522.35029 J. Differ. Equations 58, 22-42 (1985). MSC: 35H10 35A08 35E05 35A30 PDFBibTeX XMLCite \textit{R. S. Pathak}, J. Differ. Equations 58, 22--42 (1985; Zbl 0522.35029) Full Text: DOI