= Logarithmic norm
{wiki=Logarithmic_norm}
The logarithmic norm, also known as the logarithmic stability modulus, is a concept used in functional analysis and numerical analysis, particularly in the study of the stability of dynamical systems, matrices, and differential equations. For a given operator \\( A \\) (often a linear operator or a matrix), the logarithmic norm is defined in terms of the associated norms of the operator in a normed vector space. It is particularly useful for analyzing the growth rates of norms of the operator when iterated.
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