This is a preview. Log in through your library . Abstract Let A be an n × n matrix whose elements are independent random variables with standard normal distributions. As n → ∞, the expected number of ...

SIAM Journal on Numerical Analysis, Vol. 34, No. 1 (Feb., 1997), pp. 178-200 (23 pages) The purpose of this paper is to develop a convergence theory for multigrid methods applied to nearly singular ...

In chemistry, the properties of atoms and molecules can be determined by solving the Schrödinger equation. However, because the dimension of the problem grows exponentially with the size of the ...