SOME HARDY TYPE INEQUALITIES IN THE HEISENBERG GROUP

YAZHOU HAN AND PENGCHENG NIU

DEPARTMENT OF APPLIED MATHEMATICS,
NORTHWESTERN POLYTECHNICAL UNIVERSITY,
XI'AN, SHAANXI, 710072, 
P.R. CHINA
E-Mail: taoer558@163.com

E-Mail: pengchengniu@yahoo.com.cn

Received 21 January, 2003; Accepted 10 June, 2003.
Communicated by: L. Pick

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