PRESERVATION OF STABILITY IN DELAY EQUATIONS UNDER DELAY PERTURBATIONS

Ne consider a class of linear delay equations with perturbed time lags and present conditions which guarantee that the asymptotic stability of the trivial solution of the equation at hand is preserved under the se perturbations. As an example we show how our results can be used to obtain an estimate on the maximum allowable sampling interval in the stabilization of a hybrid system with feedback delays. We also present applications of our perturbation theorem to obtain stability conditio ns for delay equations with multiple delays. (C) 1998 Academic Press.