Suppose there are two non-square matrices, $A \in \mathbb{R}^{n \times k}$ and $B \in \mathbb{R}^{k \times m}$. Assume that $\Vert A \Vert \leq P$ and $\Vert B \Vert \leq Q$, then how can we find the upper bound of $\Vert AB \Vert$?
2026-02-22 20:15:38.1771791338
How to bound the L-2 norm of the product of two non-square matrices
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