蘇聯醫學科學院大會批准各部秘密投票選出的蘇聯醫學科學院通訊院士

哈床昏擎部:H.C.莫耳察裕夫,H. H.勃洛辛,H.A.库雨沙科夫,H.n.波格澳豁夫,A.H.费拉托夫,E. H.霍赫雨,B.B.彼得锥夫斯基,9.M.布雨特涅克,八.A.阿拉波夫,”.比斯攀菌斯墓。 馨擎生物科挚部:A.H.克雷斯多夫尼科夫,址P·彼得摧夫,H.A.克拉一也夫斯基,C.比界耳康诺夫。 街生季、微生物擎及傅染病擎部:x.x.柏拉涅列斯,A.A.明赫,B.n.波得案波里斯卡拒,C.H.推托施金,3.K.莫吉列夫契克。蘇聯醫學科學院大會批准各部秘密投票選出的蘇聯醫學科學院通訊院士~~…     

关于等幂和问题

自然数前n项幂的和(以下简称“幂和”)是一个古老的问题,数学史上有许多记载,见Heinrich Drrie., 100 Great Problems of Elementary Mathematics—Their History and Solution.由于组合数学的发展,这个问题仍吸引着不少数学家的兴趣。例如:J. Bicrdan, J. L. Paul, S. L. Gupta, M. J. A. Sharkey, H. W. Gould, B. Turnet, H. J. Schultz, S.H. Scott等人利用组合数学的方法,求出了幂指数从1到13的幂和公式,但是这些公式较复杂不易计     

NSF Inspector General Visited NSFC

Invited by Prof. Zhang Cunhao, Honorary President of NSFC and Chairman of Supervision Committee of NSFC, a delegation headed by Dr. Christine C. Boesz, Inspector General of NSF visited China from Oct. 14— 29, 2005. On Oct. 17, 2005, Prof. Zhu Zuoyan, Vice President of NSFC and Prof. Zhang Cunhao, Chairman of Supervision Committee of NSFC met with the delegation. The two sides exchanged views on the supervisory work of science fund in the two countries. Prof. Yue Zhonghou, …     

中国榆科朴树小志

此文报告16个新种,包括屏边朴 Celtis pin-bienensis Hu,景东朴 C.chintungensis Hu,维西朴C.weisiensis Hu,郑氏朴 C.chengiana Hu,冯氏朴 C.Fengiana Hu,文山朴 C.wenshanensis Hu,秋海棠叶朴 C.begoniifolia Hu,长柄朴 C.longi-pediccllata Hu et Hsiung,王氏朴 C.WangiHu et Cheng,砚山朴 C.yanshanensis Hu,矩圆     

NSFC Delegation Visits Russia

A NSFC delegation led by Prof.Shen Wenqing,NSFC's Vice President,paid a scientific visit to Russia during June 8th through 13th,2009,at the invitation of Prof.Vladislav Ya.Panchenko,President of the Russian Foundation for Basic Research (RFBR).During the visit to RFBR, the delegation was cordially received by Prof.Panchenko,Prof.Aleksei M.Zheltikov, RFBR's Vice President,and Dr.Alexander N.Sharov,Head of International Relations Department,RFBR.     

Prof. Zhu Zuoyan Meets with Principals of the University of Aberdeen

On Jan. 10, 2004, Prof. Zhu Zuoyan, Vice President of NSFC met with Prof. C. Duncan and Prof. Houlihan, Principal and Vice Principal of the University of Aberdeen, UK.     

DFG Delegation Visited China

At the invitation of NSFC, the DFG delegation, led by its President Prof. Ernst-Ludwig Winnacker, paida visit to China from Apr. 9 to 19, 2005. Members of the delegation include Prof. Frank Steglich, Vice Presi-dent of DFG and Dr. Axel-Hubertus Zienicke, the Deputy Secretary General, etc.Prof. Chen Yiyu, President, Prof. Zhu Zuoyan, Vice President, and Prof. Wang Jie, Vice President ofNSFC met with the delegation on April 11. Prof. Chen first briefed the delegation about the…     

论极大似然估计的Cramér渐近有效性

参数的极大似然估计(M.L.E.)的渐近有效性,是目前M.L.E.理论中一个主题。但对参数估计的渐近有效性,从不同角度出发,给出了各种不同的定义。如最优渐近正态(B.A.N.),Bahadur意义下渐近有效性等,而Cramér从均方收敛角度出发,曾提出另一种渐近有效估计的定义。虽然已过卅年,作者只见少量文章涉及它,如文献[2,3]。但在处理实际问题时,往往希望能有所回答。因此本文试图对M.L.E.的Cramér渐近有效性(简记为C.A.E.)作初步探讨,着重探讨了单参数M.L.E.是C.A.E.估计的充分条件,以及如何把非C.     

1958年度列宁奖金

4月21日,苏联部长会议列宁奖金委员会发麦了1958年度列宁奖金得奖人的姓名及贡献如下:在科学方面:1.Л.A.阿尔契莫维奇院士(工作的领导人)、M.A.列翁托维奇院士、C.Ю.卢克雅诺夫、И.H.戈洛文、C.M.奥索甫奇、H.B.菲里普波夫、O.Л.巴济列夫斯基、C.И.布拉金斯基、И.M.波德戈尔、A.M.安德利阿诺夫、B.И.西尼村、H.A.雅甫林斯基(苏联科学院原子能研究所工作人员)——用气体中强电流脈冲放电产生等离子区的研究,发表于1956—1957年。     

关于引力场能量动量张量的迹

在共形协变经典场理论中,自旋为0,1,1/2和2的无质量场的能量动量张量都是无迹的(A.O.Barut and许伯威,J.PAy.,A15 L207;许伯威,J.Phys.,A14 L97,15 L329;N.D.Birrell and P.C.W.Davies,Quantum Fields in Curved Space,p.174).另一方面,如所周知广义相对论并非共形协变的;但