【摘要】 讨论了一类二阶非线性泛函微分方程(a(t)(y′(t)σ)′+ q(t)f(y(τ(t)))g(y′(t))=0,t≥t0,σ是分母为奇数的有理分数时方程解的振动性．更多还原

【Abstract】 Oscillatory behavior of solutions o the second order nonlinear functional differential equation (a(t) (y′(t)σ)′+q(t)f(y(τ(t)))g(y′(t))=0 ,t≥t0, are considered, of whichσis a positive quotient of integer over odd integers.更多还原