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I love mountainbike. I hate the Matrix Cookbook.
Dec 5 |
answered | Calculating the dimension of the algebra generated by some given matrices |
Dec 1 |
revised |
Rank 1 Approximation of Elementwise Inverse Matrix
added 26 characters in body |
Dec 1 |
answered | Rank 1 Approximation of Elementwise Inverse Matrix |
Nov 28 |
comment |
Resolvent of a triangular matrix
In my mind "no kidding"="is it a joke ?", that is about the Michele's sentence: " where $p_A$ is the characteristic polynomial of $A$, which is easy to compute once we know an eigendecomposition of A"; that is funny when one knows that $A$ is a triangular matrix. This seems to me absolutely innocuous. Compare with "Récoltes et semailles", the book written by Grothendieck; at least, read the introduction (chapter 0). |
Nov 28 |
revised |
Resolvent of a triangular matrix
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Nov 27 |
revised |
Resolvent of a triangular matrix
added 569 characters in body |
Nov 26 |
answered | Resolvent of a triangular matrix |
Nov 26 |
comment |
Unitary factor in polar decompositions
@ Lin , I don't think so ; yet even if $-1$ is never an eigenvalue, that does not imply that $C_n<2$ because $C_n$ may be a LimitSup. |
Nov 26 |
answered | Characterizing space that preserves positive-definiteness property |
Nov 25 |
revised |
Unitary factor in polar decompositions
added 3 characters in body |
Nov 25 |
answered | Unitary factor in polar decompositions |
Nov 19 |
awarded | Revival |
Nov 19 |
revised |
LU factorization for $I+A$ (A skew-symmetric)
added 429 characters in body |
Nov 19 |
revised |
LU factorization for $I+A$ (A skew-symmetric)
added 19 characters in body |
Nov 18 |
revised |
LU factorization for $I+A$ (A skew-symmetric)
added 210 characters in body |
Nov 18 |
revised |
LU factorization for $I+A$ (A skew-symmetric)
added 14 characters in body |
Nov 18 |
answered | LU factorization for $I+A$ (A skew-symmetric) |
Oct 12 |
revised |
spectrum of a special class of tridiagonal matrices
added 372 characters in body |
Oct 12 |
revised |
spectrum of a special class of tridiagonal matrices
edited body |
Oct 12 |
revised |
spectrum of a special class of tridiagonal matrices
added 114 characters in body |