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ON THE EXISTENCE OF ELASTIC SURFACE WAVES 总被引:1,自引:0,他引:1
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ON THE RAYLEIGH QUOTIENT FOR SINGULAR VALUES 总被引:2,自引:0,他引:2
Xiaoshan Chen Wen Li 《计算数学(英文版)》2007,25(5):512-521
In this paper, the theoretical analysis for the Rayleigh quotient matrix is studied, some results of the Rayleigh quotient (matrix) of Hermitian matrices are extended to those for arbitrary matrix on one hand. On the other hand, some unitarily invariant norm bounds for singular values are presented for Rayleigh quotient matrices. Our results improve the existing bounds. 相似文献
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RAYLEIGH WAVES IN ANISOTROPIC MEDIA 总被引:2,自引:0,他引:2
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THE SCATTERING OF ELASTIC WAVES BY GRANULAR MEDIA 总被引:4,自引:0,他引:4
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RAYLEIGH WAVES IN TRANSVERSELY ISOTROPIC MEDIA 总被引:2,自引:0,他引:2
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张领海 《应用数学学报(英文版)》2001,(2)
1. IntroductionConsider the initial value problem for the bistable equationwhere f(u) = u(1-u)(u-a) and 0 < 2a < 1. Let us examine the critical points of f. Sincethe critical points are given by ρ±(a)=1/3(1 a± √1-a a~2),which are functions of theparameter a and satisfy ρ(a) ρ-(a) =2 2a/3 andρ p (a)ρ-(a)= a/3. Sinceone can obtain the ranges of the critical points 0 < ρ-(a) <1/4, 2/3 <ρ (a) <4/5. For anyconstant w with f(ρ-(a)) < w < f(ρ (a)), suppose that f(u) - w = -(u - A)(u … 相似文献
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半直线上的Hammerstein积分方程的有限截段逼近 总被引:3,自引:0,他引:3
在半直线上线性积分方程:的数值求解中,用方程(0.1)相应的有限截段方程的解、x_m(s)逼近原方程的解x(s)的方法得到x_m对x在有限区间上的一致收敛性结果.用这种方法研究方程(0.1)的数值解日见增多,特别是在[1]中,Anselone与Sloan提出所谓点列的“严格收敛性”概念来研究方程(0.1)与(0.2)的关系,显著地改 相似文献
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