College of Mathematics and Information Science, Shangqiu Normal University, Shangqiu, China. In the last decades considerable attention has been paid to upper triangular operator matrices, ...

Abstract: In this paper we propose a new representation for FFT algorithms called the triangular matrix representation. This representation is more general than the binary tree representation and, ...

Abstract: A matrix, in which most of the elements are present with zero values, is known as sparse matrix. Sparse matrices have many types in which lower and upper triangular matrices are often seen ...

[6] Complex symmetric operators and their Weyl type theorems (The research of geometric structures in quantum information based on Operator Theory and related … ...

This program samples an input matrix of binary values, building a square matrix from a random sample of row and column indices. The resulting square matrix is tested to determine if it is an upper- or ...

The most probable cause is e.g. this line of code, which makes the function accept only general matrices, triangular matrices fail with the error. This is present in ...