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具双障碍的变分问题的抛物逼近
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作者 陶有山 《纺织高校基础科学学报》 CAS 2000年第3期216-219,225,共5页
讨论具双障碍的椭元变分不等式 .将其化成一个非线性边值问题 ,然后用相应的抛物初边值问题逼近 .因抛物问题有标准的计算机程序 ,故所得结果对微分方程的理论和数值模拟都是有用的 .
关键词 变分问题 双障碍 抛物逼近 不等式 边值问题
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Schroedinger Flows on Compact Hermitian Symmetric Spaces and Related Problems 被引量:5
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作者 WeiYueDING HongYuWANG YouDeWANG 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2003年第2期303-312,共10页
In this note, we prove that the Schrodinger flow of maps from a closed Rieman surface into a compact irreducible Hermitian symmetric space admits a global weak solution. Also, we show the existence of weak solutions t... In this note, we prove that the Schrodinger flow of maps from a closed Rieman surface into a compact irreducible Hermitian symmetric space admits a global weak solution. Also, we show the existence of weak solutions to the initial value problem of Heisenberg model wit Lie algebra values, which is closely related to the Schrodinger flow on compact Hermitian symmetric spaces. 展开更多
关键词 Schroedinger流 紧Hermit对称空间 HEISENBERG模型 黎曼流形 KAEHLER流形 “广义Da Rios方程” 全局弱解 抛物逼近 调和映射
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ON THE CONVERGENCE OF THE PARABOLIC APPROXIMATION OF A CONSERVATION LAW IN SEVERAL SPACE DIMENSIONS
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作者 T. GALLOUET F. HUBERT(Universite de Provence,C.M.I.,39 rue F.Joliot Curie,13453 Marseille Cedex 13,France) 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 1999年第1期7-10,共4页
The authors give a proof of the convergence of the solution of the parabolic approximation towards the entropic solution of the scalar conservation law div f(x, t, u) = 0 in several space dimensions. For any initial c... The authors give a proof of the convergence of the solution of the parabolic approximation towards the entropic solution of the scalar conservation law div f(x, t, u) = 0 in several space dimensions. For any initial condition uo (RN) and for alarge class of flux f, they also prove the strong converge in any space, using the notion ofentropy process solution, which is a generalization of the measure-valued solutions of Diperna. 展开更多
关键词 CONVERGENCE Parabolic approximation Conservation law
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