A Comparison of Stolarsky and Gini Means
jiang yong-ming1; shi huan-nan2 (1.the first middle school; chongqing 401220; china; 2.department of electronic information; normal college of beijing union university; beijing 100011; china)
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Investigation on Sound Waves Excitation to Aero-engine Rotor Blade
lin zuo-ming1; li ke-an2; yang sheng-qun31 yang (1. aviation industry corporation of china; beijing 100022; china; 2. department of mechanical and electrical engineering; hunan institute of science and technology; yueyang 414006; china; 3. shenyang liming aero-engine group corporation; china aviation industry; shenyang 110043; china)
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..............page:14-15,31
..............page:82-83,89
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Conformally Flat Riemannian Manifolds
li xiao-huan 1; guo rui-zhi2 (1. zhuzhou professional technology college; zhuzhou 412001 china; 2. department of mathematics; hunan normal university hunan changsha 410081; china)
..............page:19-22
Automorphisms of Virasoro Algebra
yu de-min; gan xiang-yan; zhou li-ren (department of mathematics & applied mathematics; hunan institute of science and technology; yueyang 414006; china)
..............page:12-13