Oscillation of Neutral Differential Equations with "Integrally Small" Coefficients

具有“积分小”系数的中立型方程的振动性(英文)

Sufficient conditions for the oscillation of the neutral equation d/dt[x(t) - R(t)x(t - r)] + P(t)x(t - r) - Q(t)x(t - δ) = 0,where P,Q,R ∈ C([t0,∞), R+), and r, T, δ ∈ (0,∞), are obtained for the case where former results can not be applied.

讨论了中立型方程的振动性,其中P,Q,R∈C（[t0,∞）,R+）,γ,γ,δ∈（0,OO）,得到若干新结果。