Because the list based, functional toolbox of Perl 6 is not enough to calculate matrices comfortably, there is a need for a dedicated data type. The aim is to provide a full featured set of structural ...

Because the list based, functional toolbox of Raku is not enough to calculate matrices comfortably, there is a need for a dedicated data type. The aim is to provide a full featured set of structural ...

1 Department of Mathematics, Faculty of Science, Menoufia University, Shebeen El-Kom, Egypt. 2 Department of Mathematics, Faculty of Science, Zagazig University, Ash Sharqiyah, Egypt. In many ...

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 ...

Wu, Y., Qin, Y. & Zhu, M., Submitted. Estimation of multiple large covariance matrices by a partially common diagonal and low-rank matrix decomposition.

\[A=\left[\begin{align}& a_{11}\space\space a_{12}\space\space a_{13}\\& a_{21}\space\space a_{22}\space\space a_{23}\end{align}\right]\] The elements are the entries ...