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EQUIVARIANT SCHRODINGER MAPS IN TWO SPATIAL ¨ DIMENSIONS: THE H2 TARGET
EQUIVARIANT SCHRODINGER MAPS TWO SPATIAL DIMENSIONS THE H2 TARGET
2014/4/3
We consider equivariant solutions for the Schr¨odinger map problem from R2+1to H2 with finite energy and show that they are global in time and scatter.
To Hash or Not to Hash Again?(In)Differentiability Results for H2 and HMAC
Indifferentiability Hash functions HMAC
2012/12/4
We show that the second iterate H2(M) = H(H(M)) of a random oracle H cannot achieve strong security in the sense of indifferentiability from a random oracle. We do so by proving that indifferentiabili...
参数不确定离散广义系统的H2/H∞优化控制
离散广义系统 不确定性 H2/H∞优化控制 线性矩阵不等式(LMI) 状态反馈
2012/11/12
利用线性矩阵不等式(LMI)研究一类不确定离散广义系统的鲁棒H2/H∞优化控制问题。对系统所有允许的不确定参数,提出了满足鲁棒H2/H∞混合性能的一个充分条件,以设计状态反馈控制律,保证闭环系统是允许的且满足鲁棒H2/H∞混合性能,得到了该问题可解的一个矩阵不等式的充分条件,并给出一个控制律的设计。
参数不确定离散广义系统的H2/H∞优化控制
离散广义系统 不确定性 H2/H∞优化控制 线性矩阵不等式(LMI) 状态反馈
2012/11/13
利用线性矩阵不等式(LMI)研究一类不确定离散广义系统的鲁棒H2/H∞优化控制问题. 对系统所有允许的不确定参数, 提出了满足鲁棒H2/H∞混合性能的一个充分条件, 以设计状态反馈控制律, 保证闭环系统是允许的且满足鲁棒H2/H∞混合性能, 得到了该问题可解的一个矩阵不等式的充分条件, 并给出一个控制律的设计.
An O(k2+kh2+h2) Accurate Two-level Implicit Cubic Spline Method for One Space Dimensional Quasi-linear Parabolic Equations
Quasi-Linear Parabolic Equation, Implicit Method, Cubic Spline Approximation, Diffusion-Convection Equation, Singular Equation, Burgers’ Equation, Reynolds Number
2013/1/30
In this piece of work, using three spatial grid points, we discuss a new two-level implicit cubic spline method of O(k2 + kh2 + h4) for the solution of quasi-linear parabolic equation , 0< x <1, t > 0...