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Questions about the properties of vector spaces and linear transformations, including linear systems in general.

2 votes
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Unimodular eigenvalue of a H-self-adjoint matrix (indefinite innerproduct)

Let $A,H \in \mathbb{C}^{n \times n}$ be such that $H$ is Hermitian and invertible and $A = H^{-1} A^* H$. In this case, $A$ is said to be $H$-self-adjoint. This is due to the fact that if $\langle \c …
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