Oscillatory properties of systems of first order linear delay differential inequalities
Oscillatory properties of systems of first order linear delay differential inequalities
Sufficient conditions are obtained for the nonexistence of eventually positive bounded solutions of the system of delay differential inequalities and for the nonexistence of eventually negative bounded solutions of As a corollary to the above we obtain sufficient conditions for all bounded solutions of ^+Σ«^('-r,,)-0; i-1,2,...,ii 7-1 to be oscillatory.