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Results tagged with matrices
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user 2294
Questions where the notion matrix has an important or crucial role (for the latter, note the tag matrix-theory for potential use). Matrices appear in various parts of mathematics, and this tag is typically combined with other tags to make the general subject clear, such as an appropriate top-level tag ra.rings-and-algebras, co.combinatorics, etc. and other tags that might be applicable. There are also several more specialized tags concerning matrices.
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Does the truth of any statement of real matrix algebra stabilize in sufficiently high dimens...
First, we say our space is the sum of $k+3$ subspaces by finding $k+3$ projection matrices as above. … If it does work, it shows the question is undecidable, because we can use the same structure to get a diophantine equation ... keep the first three projection matrices the same, find new projection matrices …
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