【摘要】 建立了变系数非线性时滞Smith方程dN(t)dt =r(t)N(t) k-N(t-τ(t) )k+R(t)N(t-τ(t) )关于平衡态k振动的充分条件 .更多还原

【Abstract】 The oscillation of delay Smith differential equation with variable coefficient dN(t)dt=r(t)N(t)k-N(t-τ(t))k+R(t)N(t-τ(t))was studied in this paper.A sufficient condition about balanced state k oscillation is obtained.更多还原