We generalize a result stating that a nonnegative finite square matrix has a nonnegative inverse if and only if it is the product of a permutation matrix by a diagonal matrix. We consider ...

Download PDF More Formats on IMF eLibrary Order a Print Copy Create Citation This paper proposes a novel shrinkage estimator for high-dimensional covariance matrices by extending the Oracle ...

In this assignment, you will develop two parallel implementations of LU decomposition that use Gaussian elimination to factor a dense N x N matrix into an upper-triangular one and a lower-triangular ...

Abstract: Cluster analysis constitutes a pivotal component of database mining, with DBSCAN being one of the most extensively employed algorithms in this domain. Nevertheless, DBSCAN is encumbered by ...

We present a novel approach to quantum error correction (QEC) that integrates threshold quantum state tomography (tQST) with permutation–equivariant deep learning ...

The magic of mathematics is particularly reflected in magic squares. Recently, quantum physicists and mathematicians introduced the notion of the quantum magic square, and for the first time studied ...