Some properties of two dimensional interval numbers

Abstract

In this paper, we will introduce the notion of convergence of two dimensional interval sequences and show that the set of all two dimensional interval numbers is a metric space. Also, some ordinary vector norms will be extended to the set of two dimensional interval vectors. Furthermore, we will give definitions of statistical convergence, statistically Cauchy and Ces`aro summability for the two dimensional interval numbers and we will get the relationships between them.