Matrix pseudo-spectroscopy: iterative ca
โ
Gregory A. Parker; Wei Zhu; Youhong Huang; David K. Hoffman; Donald J. Kouri
๐
Article
๐
1996
๐
Elsevier Science
๐
English
โ 597 KB
The method of diagonalizing Hermitian matrices based on a polynomial expansion of the Dirac delta function S( E -H) is further refined so as to accelerate the convergence. Improved choices of the bases used for subspace diagonalization of the matrix, along with accuracy controls and estimates, are i