The Degree of a Rational Matrix Function

The Degree of a Rational Matrix Function
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有理矩阵函数的次数

DOI:
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发表时间:
1963
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影响因子:
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通讯作者:
D. Hazony
D. Hazony
中科院分区:
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文献类型:
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作者:
R. Duffin;D. Hazony

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其中PA(z)和QA(z)是z中的多项式,PA(z)和QA(z)没有公因子。我们将F(z)的次数定义为PA(Z)对于常数矩阵A的所有可能选择的最大次数。符号5F(z)用于表示矩阵F(z)的次数。同样的符号表示多项式的次数。用这个符号,度的定义可以用以下关系式表示:
where PA(z) and QA(z) are polynomials in z and PA(z) and QA(z) have no common factor. We define the degree of F(z) to be the maximum degree of PA(Z) for all possible choices of the constant matrix A. The symbol 5F(z) is used to denote the degree of the matrix F(z). The same symbolism is used to denote the degree of a polynomial. With this notation the definition of degree may be expressed by the relation