Standards is a series explaining various tech protocols, looking at their practical implementation, and where we could find them in devices around us. At the beginning of this year, WhatsApp debuted a ...

This is a preview. Log in through your library . Abstract In this paper we consider estimating the rank of an unknown symmetric matrix based on a symmetric, asymptotically normal estimator of the ...

A particular class of regular splittings of not necessarily symmetric $M$-matrices is proposed. If the matrix is symmetric, this splitting is combined with the ...