5 search results - page 1 / 1 » On the Block Triangular Form of Symmetric Matrices |
SIAMREV
2010
13 years 5 months ago
2010
We present some observations on the block triangular form (btf) of structurally symmetric, square, sparse matrices. If the matrix is structurally rank deficient, its canonical btf ...
JPDC
2008
13 years 11 months ago
2008
Two parallel block tridiagonalization algorithms and implementations for dense real symmetric matrices are presented. Block tridiagonalization is a critical pre-processing step for...
SIAMMAX
2010
13 years 5 months ago
2010
Abstract. Given a symmetric positive definite matrix A, we compute a structured approximate Cholesky factorization A RT R up to any desired accuracy, where R is an upper triangula...
EUROPAR
2003
Springer
14 years 4 months ago
2003
Springer
An implementation of a parallel ScaLAPACK-style solver for the general Sylvester equation, op(A)X −Xop(B) = C, where op(A) denotes A or its transpose AT , is presented. The paral...
GMP
2002
IEEE
14 years 4 months ago
2002
IEEE
We present new results on classifying the morphology of the nonsingular intersection curve of two quadrics by studying the roots of the characteristic equation, or the discriminan...