Nazari, A., Kamali Maher, S. (2013). On the nonnegative inverse eigenvalue problem of traditional matrices. Journal of Linear and Topological Algebra (JLTA), 02(03), 167-174.

A. M. Nazari; S Kamali Maher. "On the nonnegative inverse eigenvalue problem of traditional matrices". Journal of Linear and Topological Algebra (JLTA), 02, 03, 2013, 167-174.

Nazari, A., Kamali Maher, S. (2013). 'On the nonnegative inverse eigenvalue problem of traditional matrices', Journal of Linear and Topological Algebra (JLTA), 02(03), pp. 167-174.

Nazari, A., Kamali Maher, S. On the nonnegative inverse eigenvalue problem of traditional matrices. Journal of Linear and Topological Algebra (JLTA), 2013; 02(03): 167-174.

On the nonnegative inverse eigenvalue problem of traditional matrices

^{}Department of Mathematics, Faculty of Science, Arak University, Arak 38156-8-8349, Iran.

Abstract

In this paper, at rst for a given set of real or complex numbers with nonnegative summation, we introduce some special conditions that with them there is no nonnegative tridiagonal matrix in which is its spectrum. In continue we present some conditions for existence such nonnegative tridiagonal matrices.