Electronic Journal of Differential Equations (Jun 2005)
Interval oscillation criteria for second order forced nonlinear matrix differential equations
Abstract
New oscillation criteria are established for the nonlinear matrix differential equations with a forced term $$ [ r(t)Y'(t)] '+p(t)Y'(t)+Q(t)G( Y'(t)) F( Y(t)) =e(t)I_n. $$ Our results extend and improve the recent results of Li and Agarwal for scalar cases. Furthermore, one example that dwell upon the importance of our results is included.