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Results tagged with matrices
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user 117637
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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Projecting onto space of matrices with spectral radius less than one
For the problem without absolute value and with the spectral norm instead of spectral radius, hard-thresholding the singular values of $\mathbf{M}$ yields a matrix $\mathbf{X}$ that is its best approx …
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