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Dimension Properties of Sample Paths of Self-Similar Processes

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Acta Mathematica Sinica,English Series 1994年第3期10卷 289-300页

作者： Xiao Yimin department of Mathematics wuhan university wuhan,430072 china Lin Huonan department of Mathematics Fujian normal university Fuzhou,350007 china department of Mathematics Wuhan University Wuhan China department of Mathematics Fujian Normal University Fuzhou China

The Hansdorff dimensions of the image and the graph of random fields are given under general *** results can be used to a wider class of self-similar random fields and processes,including Brownian motion,Brownian shee... 详细信息

关键词： Dimension Properties of Sample Paths of Self-Similar Processes

ON ABELIAN AUTOMORPHISM GROUPS OF SURFACES OF GENERAL TYPE

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Chinese Annals of Mathematics,Series B 1996年第1期17卷 43-52页

作者： CAI JINXING(department of Mathematics, East china normal university, Shanghai 200062, china.) 华东师范大学数学系上海

It is proved that for a complex minimal smooth projective surface S of general type, its abelian automorphism group is of order≤36k2s+24, provided x(os)≥8, where Ks is the canonical divisor of S, and X(Os) the Euler... 详细信息

关键词： Projective surface Automorphism group Canonical divisor

Large deviation principles for stationary NA sequences

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Chinese Science Bulletin 1998年第7期43卷 536-540页

作者： HU Yijun department of Mathematics, wuhan university, wuhan 430072, china department of Mathematics Wuhan University Wuhan China

Under general conditions, the large deviation principles for partial sums of stationary NA sequences are proved.

关键词： NA sequence stationary sequence partial sums large deviation principle.

UNIFORM ESTIMATE ON FINITE TIME RUIN PROBABILITIES WITH RANDOM INTEREST RATE

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Acta Mathematica Scientia 2010年第3期30卷 688-700页

作者：明瑞星何晓霞胡亦钧刘娟 School of Mathematics and Information Sciences Jiangxi Normal University School of Mathematics and statistics Wuhan University College of Science Wuhan University of Science and Technology College of Mathematics and statistics Hubei Normal University

We consider a discrete time risk model in which the net payout （insurance risk） {Xk, k = 1, 2,...} are assumed to take real values and belong to the heavy-tailed class L∩ D and the discount factors （financial risk） {Yk, k = 1,2,...} concentrate on [θ, L], where 0 〈 0 〈 1, L 〈 ∞, {Xk, k = 1,2,...}, and {Yk, k=1,2,...} are assumed to be mutually independent. We investigate the asymptotic behavior of the ruin probability within a finite time horizon as the initial capital tends to infinity, and figure out that the convergence holds uniformly for all n ≥ 1, which is different from Tang Q H and Tsitsiashvili G （Adv Appl Prob, 2004, 36： 1278-1299）.

关键词： Random interest rate finite time ruin probability uniformity

Study　on　the　damage　of　the　“91．7”　rainstorm　in　Sihu　drainage　area　with　remote　sensing　application　technique

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Journal of Environmental Sciences 1994年第2期6卷 155-163页

作者： Yu Guangming(department of Geography, central china normal Univerrity, wuhan 430070, china)Chen Ping Wu Xuejin Wang Chaonan(department of Geography, Xianning Teachero’ College, Xianning 437005, Hubei Province, china)

In this paper, the water equilibrium and ground truth are analyzed for '91.7' rainstormin Sihu drainage area, Hubei Province, china. The flood and waterlogging situation of ' 91.7'rainstorm in this area are investigated using remote sensing, especially the estimation of inundatedarea, the analysis of temporal and spatial characters of this flood and waterlogging damage. Andthe way of flood-trace using remote sensing is explored. At last, the disastroiis conditions are evalu-ated.

关键词： flood and waterlogging damage inundated area remote sensing, rainstorm.

Bose-Einstein Condensation in Linear Sigma Model at Hartree Approximation

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Communications in Theoretical Physics 2008年第5期49卷 1261-1264页

作者： SHU Song~(1,+) LI Jia-Rong~21 Faculty of Physics and Electronic Technology,Hubei university,wuhan 430062,china2 Institute of Particle Physics,Huazhong normal university,wuhan 430079,china Faculty of Physics and Electronic Technology Hubei University Wuhan 430062 China Institute of Particle Physics Huazhong Normal University Wuhan 430079 China

The BEC of charged pions is investigated in the framework of O(4) linear sigma *** using Cornwall-Jackiw- Tomboulis formalism,we have derived the gap equations for the effective masses of the mesons at finite tempera-ture and finite isospin *** critical temperature and phase diagram of BEC are discussed in the non-chiral limitat Hartree approximation.

关键词： finite temperature field theory Bose-Einstein condensation phase transitions

The microscopic approach of sdgIBM-1 and study of the ^(192,190,188)Os isotopes

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Nuclear Science and Techniques 1998年第2期9卷 69-73页

作者： Zhang Zhan-Jun Sang Jian-Ping Pan Wu-Ming Liu Yong (Institute of Particle Physics, Hua-Zhong normal university, wuhan 430079, department of Physics,wuhan university, wuhan 430072, department of Physics, Hua-Zhong normal university, wuhan 430079) Institute of Particle Physics Hua-Zhong Normal University Wuhan 430079 China department of Physics Wuhan University Wuhan 430072 China department of Physics Hua-Zhong Normal University Wuftan 430079 China

From the shell model configurations, valence nucleon effective interactions and fermion E2 transition operator, the sdgIBM-1 Hamiltonian and boson E2 transition operator are derived micoscopically with the help of Dyson boson expansion technique. Spectra and reduced E2 matriX elements are calculated for the 192,190,188Os isotopes. Present theoritical results fit experimental data quite well.

关键词：锇同位素研究微观方法