Ψ-Stability of Nonlinear Volterra Integro-Differential Systems with Time Delay
نویسندگان
چکیده
and Applied Analysis 3 then, we have z (t) + z (t) ( d dt q (t)) ≥ −R (t) . (13) Multiplying the above inequality by eq(t) = Q(t), we get d dt (z (t) Q (t)) ≥ −Q (t) R (t) . (14) Consider now the integral on the interval [0, t] to obtain z (t) Q (t) ≥ z (0) − ∫ t 0 Q (s) R (s) ds, 0 ≤ t ≤ T, (15) so z (t) = 1 b (T) + x (t)
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