%0 Journal Article %T Inverse eigenvalue problem of interval nonnegative matrices of order $\le 3$ %J Journal of Mathematical Modeling %I University of Guilan %Z 2345-394X %A Nazari, Alimohammad %A Zeinali, Maryam %A Mesgarani, Hamid %D 2018 %\ 12/01/2018 %V 6 %N 2 %P 187-194 %! Inverse eigenvalue problem of interval nonnegative matrices of order $\le 3$ %K Inverse eigenvalue problem of interval nonnegative matrices %R 10.22124/jmm.2018.10836.1171 %X In this paper for a given set of real or complex interval numbers $\sigma$  satisfying  special conditions,  we find an interval nonnegative matrix  $C$ such that for each point set $\delta$  of given interval spectrum $\sigma$, there exists a point matrix $A$ of $C$ such that   $\delta$ is its spectrum. We also study some conditions for the  solution   existence of the problem. %U https://jmm.guilan.ac.ir/article_2962_a486c2238c47eb581d405624d3dce8d2.pdf