Contents I. Introduction
In recent years, much attention has been paid to two-dimensional (2-D) systems due to their many physical applications [1], [6], especially in signal filtering and image processing [3], [8]. In these cases, some delays can appear during transportation or computation time which cannot be neglected and make control of 2-D systems a nontrivial task. Thus, motivated by this, it becomes appropriate to study 2-D delayed systems. Much work has been reported on the problem of the stability of standard, often termed 1-D, linear systems with delays [2], [4], [9] but relatively little on the stability of 2-D linear systems with delays [10].
