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The semismooth and smoothing Newton methods for solving Pareto eigenvalue problem

机译:求解帕累托特征值问题的半光滑和光滑牛顿方法

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In this paper, we study the numerical behavior of the semismooth and smoothing Newton methods for solving Pareto eigenvalue problem of the form x≥0. A_x -λ/Bx≥ 0. (x.Ax - λBx) = 0. where (A,B) is a pair of possibly asymmetric matrices of order n. Such an eigenvalue problem arises in mechanics and in other areas of applied mathematics. By using the (smoothing) Fischer-Burmeister NCP function and the normalization condition e~Tx= 1, the Pareto eigenvalue problem can be converted into a equivalent semismooth (or smoothing) system of equations, where e = (1.....1 )~T. Then a semismooth (or smoothing) Newton algorithm is designed to solve such a semismooth (or smoothing) system of equations. Some numerical results are reported in the paper, which indicates that the proposed algorithms are very effective.
机译:在本文中,我们研究了解决x≥0形式的Pareto特征值问题的半光滑和光滑牛顿法的数值行为。 A_x-λ/Bx≥0。(x.Ax-λBx)=0。其中(A,B)是一对可能的n阶不对称矩阵。这样的特征值问题出现在力学和应用数学的其他领域。通过使用(平滑)Fischer-Burmeister NCP函数和归一化条件e〜Tx = 1,可以将帕累托特征值问题转换为等式的半平滑(或平滑)方程组,其中e =(1 ..... 1)〜T。然后,设计了一个半平滑(或平滑)牛顿算法来求解这种半平滑(或平滑)方程组。本文报道了一些数值结果,表明所提出的算法非常有效。

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