摘要Assume G is a group of order 2^(n),n≥5.Let s_(k)(G)denote the number of subgroups of order 2^(k) of G.We classify finite 2-groups G with s k(G)≤2^(4),where 1≤k≤n.
4ZHANG QinHai & QU HaiPeng School of Mathematics and Computer Sciences, Shanxi Normal University, Linfen 041004, China.On Hua-Tuan's conjecture[J].Science China Mathematics,2009,52(2):389-393. 被引量：6
2ZHANG QinHai & QU HaiPeng School of Mathematics and Computer Sciences, Shanxi Normal University, Linfen 041004, China.On Hua-Tuan's conjecture[J].Science China Mathematics,2009,52(2):389-393. 被引量：6
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2ZHANG QinHai & QU HaiPeng School of Mathematics and Computer Sciences, Shanxi Normal University, Linfen 041004, China.On Hua-Tuan's conjecture[J].Science China Mathematics,2009,52(2):389-393. 被引量：6
