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Questions about the properties of vector spaces and linear transformations, including linear systems in general.

2 votes

Product of a vector by an inverse of Toeplitz matrix

While $O(n\log^2n)$ Toeplitz solvers have been known for a while, they tend to be numerically unstable. The modern approach is to use FFTs to convert the problem to one involving Cauchy matrices, and …
Shivkumar Chandrasekaran's user avatar