Random sampling from a multivariate normal distribution is essential for Monte Carlo simulations in many credit risk models. For a portfolio of N obligors, standard methods usually require O(N2) ...

Scientists used an experimental targeted molecular therapy to block a matrix-forming protein in heart cells damaged by heart attack, reducing levels of scarred muscle tissue and saving mouse models ...

This is a preview. Log in through your library . Abstract In this paper, we give expressions for the generalized Drazin inverse of a (2,2,0) block matrix over a Banach algebra under certain ...

This is a preview. Log in through your library . Abstract Suppose R is an associative ring with identity 1. The purpose of this paper is to give some necessary and sufficient conditions for the ...