一類中立型雙曲方程解的振動準則.pdf

1、河北大學碩士學位論文一類中立型雙曲方程解的振動準則姓名：王淑云申請學位級別：碩士專業(yè)：基礎數(shù)學指導教師：王培光20040601AbstractAbstractIn this paper, a class of boundary value problem of hyperbolic differential equa-tions of neutral type?2?t2 [u + c(t)u(x, t ? τ)] = a0(t)?u +

2、 a1(t)?u(x, t ? ρ)?? ba q(x, t, ξ)u[x, g(t, ξ)]dµ(ξ), (x, t) ∈ ? × R+ ≡ G,(E)and boundary conditions of the following typesu = 0, (x, t) ∈ ?? × R+ (B1)?u?n + ν(x, t)u = 0, (x, t) ∈ ?? × R+, (B2)is inv

3、estigated, and some oscillation criteria for such equations satisfying two kindsof boundary conditions are obtained.Keywords. oscillation, hyperbolic equation, boundary value problem, dis-tributed deviating arguments.-II