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关于两类特殊矩阵2-范数界的估计

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矩阵的2-范数是对矩阵进行度量的一种方法,它在数值计算、优化问题、机器学习等领域都具有重要的应用.为此,首先推导了 Pell和Pell-Lucas数的几个平方和公式.其次分别构造了以Pell或Pell-Lucas数为元素的Hankel-Hessenberg矩阵和Toeplitz-Hessenberg矩阵.最后讨论了这两类矩阵的2-范数的上下界.
Estimation of 2-norm bounds for two types of special matrices
The 2-norm of a matrix is a method of measuring matrices,which has important applications in numerical calculations,optimization problems,machine learning,and other fields.Therefore,firstly,sev-eral square sum formulas of Pell and Pell-Lucas numbers are derived.Secondly,Hankel-Hessenberg and Toeplitz-Hessenberg matrices with Pell or Pell-Lucas numbers as elements are constructed.Finally,the upper and lower bounds of the 2-norm of two matrices are discussed.

Pell numberPell-Lucas numberHankel-Hessenberg matricesToeplitz-Hessenberg matricesHadamard product2-norm

张超、邓勇

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喀什大学数学与统计学院,新疆喀什 844006

喀什大学现代数学及其应用研究中心,新疆喀什 844006

Pell Pell-Lucas Hankel-Hessenberg 矩阵 Toeplitz-Hessenberg 矩阵 Hadamard 2-范数

2024

青海师范大学学报(自然科学版)
青海师范大学

青海师范大学学报(自然科学版)

影响因子:0.333
ISSN:1001-7542
年,卷(期):2024.40(3)