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In linear algebra, let A = (a_ij) be a n × n complex matrix. The comparison matrix M(A) = (α_ij) of complex matrix A is defined as

${\displaystyle \alpha _{ij}={\begin{cases}-|a_{ij}|&{\text{if }}i\neq j,\\|a_{ij}|&{\text{if }}i=j.\end{cases}}}$

See also

• Hurwitz-stable matrix
• P-matrix
• Perron–Frobenius theorem
• Z-matrix
• L-matrix
• M-matrix
• H-matrix (iterative method)

References

1. Varga, Richard S. (2006). "Basic Iterative Methods and Comparison Theorems". Matrix Iterative Analysis (2nd ed.). Springer Science+Business Media. p. 92. ISBN 1-4020-3555-1.

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