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A maximum principle for optimal control problem of fully coupled forward-backward stochastic systems with partial information

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Science china mathematics 2009年第7期52卷 1579-1588页

作者： MENG QingXin1,2 1 Department of Mathematical Sciences,Huzhou university,Zhejiang 313000,china 2 institute of mathematics,fudan university,shanghai 200433,china 1. Department of Mathematical Sciences Huzhou University Zhejiang 313000 China 2. institute of mathematics Fudan University Shanghai 200433 China

The paper is concerned with a stochastic optimal control problem in which the controlled system is described by a fully coupled nonlinear forward-backward stochastic differential equation driven by a Brownian *** is required that all admissible control processes are adapted to a given subfiltration of the filtration generated by the underlying Brownian *** this type of partial information control,one sufficient(a verification theorem) and one necessary conditions of optimality are *** control domain need to be convex and the forward diffusion coefficient of the system can contain the control variable.

关键词： maximum principle stochastic optimal control partial information 93E20 60H10 60H30

Harmonic Maps from Kahler Manifolds

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Acta Mathematica Sinica,English Series 1999年第2期15卷 277-292页

作者： Yuanlong Xin, institute of mathematics and LMNS, fudan university, shanghai 200433, P. R. chinaE-mail: ylxin@fudan, edu. cn institute of mathematics and LMNS Fudan University Shanghai P. R. China

Some Liouville type theorems for harmonic maps from Kahler manifolds are obtained. The main result is to prove that a harmonic map from a bounded symmetric domain (except IV（2）) to any Riemannian manifold with finit... 详细信息

关键词： Harmonic map Kahler manifold Bounded symmetric domain

Determination of environmental pollutants bythermal lens method

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Journal of Environmental Sciences 1995年第2期7卷 163-166页

作者： Zhang Yue Deng Guohong Li Changlin(Environmental Science institute, fudan university , shanghai 200433 , china) fudan Univ Envmlt Sci Inst Shanghai China China

ＤｅｔｅｒｍｉｎａｔｉｏｎｏｆｅｎｖｉｒｏｎｍｅｎｔａｌｐｏｌｌｕｔａｎｔｓｂｙｔｈｅｒｍａｌｌｅｎｓｍｅｔｈｏｄＺｈａｎｇＹｕｅ；ＤｅｎｇＧｕｏｈｏｎｇ；ＬｉＣｈａｎｇｌｉｎ（ＥｎｖｉｒｏｎｍｅｎｔａｌＳｃｉｅｎｃ... 详细信息

ＤｅｔｅｒｍｉｎａｔｉｏｎｏｆｅｎｖｉｒｏｎｍｅｎｔａｌｐｏｌｌｕｔａｎｔｓｂｙｔｈｅｒｍａｌｌｅｎｓｍｅｔｈｏｄＺｈａｎｇＹｕｅ；ＤｅｎｇＧｕｏｈｏｎｇ；ＬｉＣｈａｎｇｌｉｎ（ＥｎｖｉｒｏｎｍｅｎｔａｌＳｃｉｅｎｃｅｉｎｓｔｉｔｕｔｅ，ＦｕｄａｎＵ...

关键词： thermal lens : carbon disulfide anthracene benzophenone.

Dynamics of Primary Events in the Photocycle of Excited Bacteriorhodopsin

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Acta Biochimica et Biophysica Sinica 2004年第11期36卷 724-728页

作者： Jun-Jun LU, Ming MING, yi YANG, Jia WU, Bo LI, Jian-Dong DING, Qing-Guo LI, and Shi-Xiong QIANDepartment of Physics, fudan university, shanghai 200433, china Department of Macromolecular Science, Key Laboratory of Molecular Engineering of Polymers, fudan university, shanghai 200433, china Department of Physiology and Biophysics, School of Life Sciences, fudan university, shanghai 200433, china Department of Physics Fudan University Shanghai 200433 China

Transient dynamic behavior of the excited bacteriorhodopsin (BR), which was isolated from the strain H. salinarum, was studied at excitation wavelength from 585 to 639 nm. With the one-color femtosecond (fs) pump-probe technique, we revealed the primary events in BR's photocycle that took place in an ultrafast time scale. From the analysis of the decay components of the dynamical traces, it was evident that the isomerization of the retinal

关键词： bacteriorhodopsin transient dynamics primary events femtosecond laser pump-probe technique

Numerical Computation of High Dimensional Solitons Via Darboux Transformation

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Communications in Nonlinear Science and Numerical Simulation 1997年第4期2卷 248-252页

作者： Zixiang zhou (institute of mathematics,fudan university,shanghai 2 0 0 433,china) E- mail:zxzhou@*** institute of mathematics Fudan University Shanghai 200433 China

Darboux transformation gives explicit soliton solutionsof nonlinear partial differential equations. Using numerical computation in each step of constructing Darboux transformation,one can get the graphs of the solitons ***(n 3) , this method greatly increases the speed and deduces the memory usage of computation comparing to the software for algebraic computation. A technical problem concerning floating overflow is discussed.

关键词： Darboux transformation numerical computation

RELAXATION AND EXISTENCE IN NONISOTROPICAL PLASTICITY PROBLEMS

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Chinese Annals of mathematics,Series B 1991年第3期12卷 309-317页

作者：汤奇 institute of mathematics Fudan University Shanghai China.

Giving a nonisotropic plasticity problem on a Sobolev Space, the author tries to relax it to a new problem whioh is posed on a subset of BD (Ω). It is proved that this relaxation does not change the equilibrium energ... 详细信息

关键词： relaxation posed subset restricted plasticity behave Radon Legendre convex verify

The p-Harmonic Heat Flow with Potential into Homogeneous Spaces

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Acta Mathematica Sinica,English Series 2002年第1期18卷 21-26页

作者： LIU Xian Gao LI Sheng Hong institute of mathematics. fudan university. shanghai, 200433 P. R. china institute of mathematics. Zhejiang university. Hangzhou. 310027. P. R. china institute of mathematics Fudan University Shanghai P. R. China institute of mathematics Zhejiang University Hangzhou P. R. China

Abstract l11 tl1is papel' xte I7rove tl1e existellce of gIol>al wcak so1utiolls of the I)--11i1r11loliic flow with potelltial bett'eel1 Rit)mal1nian lnallifOlds AI an(l N fbr arbitrary iuitial data 1la\-i11g fl11ite P... 详细信息

关键词： p-Harmonic heat flow Homogeneous space Existence

AN ELASTOPLASTIC PROBLEM WITH FRICTIONS

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Chinese Annals of mathematics,Series B 1990年第4期11卷 454-465页

作者：汤奇 institute of mathematics Fudan UniversityShanghaiChina.

This looper discusses on elastoplastic problem with frictions given on a part of *** that friction follows simplified Coulom’s law,the author gives anexplicit relaxation of energy and proves that the solution exists.

关键词： relaxation simplified admissible friction hough embedding simplify relaxed preserve 子一

CMC surfaces in the hyperbolic 3-space

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Chinese Science Bulletin 1998年第7期43卷 547-550页

作者： YU Zuhuan 1, 2 and LI Zhenqi 1, 3 1. institute of mathematics, fudan university, shanghai 200433, china 2. Department of mathematics,Sichuan Union university, Chengdu 610064, china 3. Department of mathematics, Nanchang university, Nanchang 33 nstitute of Mathemalics Fudan University Shanghai China Department of mathematics Sichuan Union University Chengdu China Department of mathematics Nanchang University Nanchang China

CMC-H surfaces satisfying H≥1 are studied. It is proved that these surfaces possess a natural representation which is a generalization of the Bryant’s result.

关键词： hyperbolic space CMC surface Weierstrass representation.