Ji, Qingzhong; Qin, Hourong On the relative class number of a cyclotomic field. (Chinese. English summary) Zbl 1016.11050 J. Nanjing Univ., Math. Biq. 16, No. 2, 222-228 (1999). Reviewer: Pei Dingyi (Beijing) MSC: 11R29 11R18 × Cite Format Result Cite Review PDF
Qin, Hourong Elements of order 4 and order 2 in \(K_ 2O_ F\) for algebraic number fields \(F\). (Chinese. English summary) Zbl 0815.11057 J. Nanjing Univ., Math. Biq. 11, No. 1, 44-49 (1994). Reviewer: Zhang Xianke (Beijing) MSC: 11R70 19C20 × Cite Format Result Cite Review PDF
Zhang, Hongtu; Qin, Hourong Solution of the system of linear diophantine equations \(A_{S-I,S}X=N\). (Chinese. English summary) Zbl 0830.11012 J. Nanjing Univ., Math. Biq. 10, No. 2, 195-202 (1993). Reviewer: Xu Guangshan (Beijing) MSC: 11D04 × Cite Format Result Cite Review PDF