$ || A ||_{C^0 (K)} $ Here $A$ is $ n \times n $ Hermitian, Positive definite matrix, and $K \in \mathbb R^n$.
What does this norm $|| \cdot ||_{{C^0} (K) }$ mean?
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0@froggie Oh thank you. There is not any explanation in the book, but I think you're right. – 2012-05-13
1 Answers
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As the notations may suggest, $K$ is compact and $A(x)$ is a matrix when $x\in K$ and the entries are continuous functions. Then $\lVert A\rVert_{C^0(K)}=\max_{r,c}\sup\{A_{r,c}(x),x\in K\}.$