We establish new Kamenev-type oscillation criteria for the half-linear partial differential equation with damping div（A（x）｜｜ u｜｜^p-2 u）＋〈b（x）,｜｜ u｜｜^p-2 u〉＋c（x）｜u｜^p-2u=0（E）under quite general ...We establish new Kamenev-type oscillation criteria for the half-linear partial differential equation with damping div（A（x）｜｜ u｜｜^p-2 u）＋〈b（x）,｜｜ u｜｜^p-2 u〉＋c（x）｜u｜^p-2u=0（E）under quite general conditions. These results are extensions of the recent results developed by Sun [Y.C. Sun, New Kamenev-type oscillation criteria of second order nonlinear differential equations with damping, J. Math. Anal. Appl. 291 （2004） 341-351] for second order ordinary differential equations in a natural way, and improve some existing results in the literature. As applications, we illustrate our main results using two different types of half-linear partial differential equations.展开更多
In this paper,the oscillation for a class of second-order half-linear neutral damped differential equation with time-delay is studied.By means of Yang-inequality,the generalized Riccati transformation and a certain fu...In this paper,the oscillation for a class of second-order half-linear neutral damped differential equation with time-delay is studied.By means of Yang-inequality,the generalized Riccati transformation and a certain function,some new sufficient conditions for the oscillation are given for all solutions to the equation.展开更多
研究了一类具有连续分布滞量含阻尼项的非线性双曲型偏微分方程~2u(x,t)/t^2+p(t)u(x,t)/t+A(x,t)u(x,t)+sum from i=1 to m_1( )∫_a^bB_i(x,t,τ)f_i(u(x,r_1(t,τ)))dm(τ)=C(t)Δu(x,t)+sum from j=1 to m_2( )∫_a^bD_j(t,...研究了一类具有连续分布滞量含阻尼项的非线性双曲型偏微分方程~2u(x,t)/t^2+p(t)u(x,t)/t+A(x,t)u(x,t)+sum from i=1 to m_1( )∫_a^bB_i(x,t,τ)f_i(u(x,r_1(t,τ)))dm(τ)=C(t)Δu(x,t)+sum from j=1 to m_2( )∫_a^bD_j(t,τ)Δu(x,r2(t,τ))dm(τ),获得了该方程在两类边值条件下解振动的充分条件.展开更多
研究了一类具非线性扩散系数和阻尼项的双曲型偏微分方程系统2ui(x,t)/t2+m(t)ui(x,t)/t=ai(t)hi(ui)Δui+sum from j=1 to n aij(t)hij(ui(x,t-τj(t)))Δui(x,t-τj(t))-sum from k=1 to m bik(x,t)uk(x,t-σ(t))(x,t)∈Ω...研究了一类具非线性扩散系数和阻尼项的双曲型偏微分方程系统2ui(x,t)/t2+m(t)ui(x,t)/t=ai(t)hi(ui)Δui+sum from j=1 to n aij(t)hij(ui(x,t-τj(t)))Δui(x,t-τj(t))-sum from k=1 to m bik(x,t)uk(x,t-σ(t))(x,t)∈Ω×R+≡G,i=1,2,…m,获得了该方程组在Robin边值条件下解振动的充分条件。展开更多
基金Supported by the National Natural Science Foundation of Guangdong Province under Grant (No.8451063101000730)
文摘We establish new Kamenev-type oscillation criteria for the half-linear partial differential equation with damping div（A（x）｜｜ u｜｜^p-2 u）＋〈b（x）,｜｜ u｜｜^p-2 u〉＋c（x）｜u｜^p-2u=0（E）under quite general conditions. These results are extensions of the recent results developed by Sun [Y.C. Sun, New Kamenev-type oscillation criteria of second order nonlinear differential equations with damping, J. Math. Anal. Appl. 291 （2004） 341-351] for second order ordinary differential equations in a natural way, and improve some existing results in the literature. As applications, we illustrate our main results using two different types of half-linear partial differential equations.
基金partially supported by the construct program of the key disciplin in Hunan Province(No.070105)
文摘In this paper,the oscillation for a class of second-order half-linear neutral damped differential equation with time-delay is studied.By means of Yang-inequality,the generalized Riccati transformation and a certain function,some new sufficient conditions for the oscillation are given for all solutions to the equation.
文摘研究了一类具有连续分布滞量含阻尼项的非线性双曲型偏微分方程~2u(x,t)/t^2+p(t)u(x,t)/t+A(x,t)u(x,t)+sum from i=1 to m_1( )∫_a^bB_i(x,t,τ)f_i(u(x,r_1(t,τ)))dm(τ)=C(t)Δu(x,t)+sum from j=1 to m_2( )∫_a^bD_j(t,τ)Δu(x,r2(t,τ))dm(τ),获得了该方程在两类边值条件下解振动的充分条件.
文摘研究了一类具非线性扩散系数和阻尼项的双曲型偏微分方程系统2ui(x,t)/t2+m(t)ui(x,t)/t=ai(t)hi(ui)Δui+sum from j=1 to n aij(t)hij(ui(x,t-τj(t)))Δui(x,t-τj(t))-sum from k=1 to m bik(x,t)uk(x,t-σ(t))(x,t)∈Ω×R+≡G,i=1,2,…m,获得了该方程组在Robin边值条件下解振动的充分条件。
