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Results tagged with linear-algebra
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user 165906
Questions about the properties of vector spaces and linear transformations, including linear systems in general.
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Almost commuting matrices, one a projection, is there a nearby projection that commutes?
Suppose that $P, A, Q \in \mathbb{M}^{n \times n}(\mathbb{R})$ (I'm still interested if it must be done over $\mathbb{C}$), (EDIT:) suppose that $A$ is given, $P$ is an orthogonal projection, and $\lV …
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