共查询到20条相似文献,搜索用时 31 毫秒
1.
We study the first boundary-value problem for the following mixed-type equation of the second kind:
$
u_{xx} + yu_{yy} + au_y - b^2 u = 0
$
u_{xx} + yu_{yy} + au_y - b^2 u = 0
相似文献
2.
Extensions of some inequalities 总被引:2,自引:0,他引:2
ChenDaoqi 《高校应用数学学报(英文版)》2001,16(3):241-243
Abstract. By using a simple analytic method the following inequalities are proved: 相似文献
3.
By using the Riccati transformation and mathematical analytic methods,some sufficient conditions are obtained for oscillation of the second-order quasilinear neutral delay difference equations Δ[r n |Δz n | α-1 Δ z n ] + q n f (x n-σ)=0,where z n=x n + p n x n τ and ∞ Σ n=0 1 /r n 1/α < ∞. 相似文献
4.
S. H. SAKER B. G. ZHANG 《数学学报(英文版)》2007,23(4):715-722
Some new oscillation criteria for nonlinear delay difference equation with damping △^2xn+pn△xn+F(n,x(n-τ,△x(n-σ)=0,n=0,1,2,…,(*)are given. Our results partially solve the open problem posed in [Math. Bohemica, 125 (2000), 421- 430]. Also, we will establish some new oscillation criteria for special cases of (*), which improve some of the well-known results in the literature. 相似文献
5.
Yanheng Ding Shixia Luan Michel Willem 《Journal of Fixed Point Theory and Applications》2007,2(1):117-139
We study existence and multiplicity of homoclinic type solutions to the following system of diffusion equations on
\mathbbR ×W{\mathbb{R}} \times \Omega
:
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