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I love mountainbike. I hate the Matrix Cookbook.


17h
revised Resolvent of a triangular matrix
added 569 characters in body
1d
answered Resolvent of a triangular matrix
2d
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.
2d
answered Characterizing space that preserves positive-definiteness property
2d
revised Unitary factor in polar decompositions
added 3 characters in body
2d
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
Oct
10
answered spectrum of a special class of tridiagonal matrices
Oct
10
answered Matrix, singular values, Moore-Penrose-pseudoinverse
Sep
24
awarded  Autobiographer
Sep
17
revised Asymptotic property of a quadratic form
added 305 characters in body
Sep
16
answered Asymptotic property of a quadratic form