ON THE OSCILLATORY BEHAVIOR OF A CLASS
OF EVEN ORDER NONLINEAR DAMPED DELAY
DIFFERENTIAL EQUATIONS WITH DISTRIBUTED
DEVIATING ARGUMENTS
S. Janaki1, V. Ganesan2 1 Department of Mathematics
Periyar University
Salem - 636 011, Tamil Nadu, INDIA 2 PG and Research Department of Mathematics
Aringar Anna Government Arts College
Namakkal - 637 002, Tamil Nadu, INDIA
The present study concerns the oscillation of a class of even-order nonlinear damped delay differential equations with distributed deviating arguments. We offer a new description of oscillation of the even-order equations in terms of oscillation of a related well studied second-order linear differential equation without damping. Some new oscillatory criteria are obtained by using the generalized Riccati transformation, integral averaging technique and comparison principles. The effectiveness of the obtained criteria is illustrated via examples.
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