共查询到20条相似文献,搜索用时 31 毫秒
1.
Mustafa Hasanbulli 《Applied mathematics and computation》2010,215(12):4392-4399
By refining the standard integral averaging technique, we obtain new oscillation criteria for a class of second order nonlinear neutral differential equations of the form
(r(t)(x(t)+p(t)x(t-τ))′)′+q(t)f(x(t),x(σ(t)))=0. 相似文献
2.
Shiping Lu 《Journal of Mathematical Analysis and Applications》2007,336(2):1107-1123
By means of Mawhin's continuation theorem, a kind of p-Laplacian differential equation with a deviating argument as follows:
(φp(x′(t)))′=f(t,x(t),x(t−τ(t)),x′(t))+e(t) 相似文献
3.
In this paper, a higher order p-Laplacian neutral functional differential equation with a deviating argument:
[φp([x(t)−c(t)x(t−σ)](n))](m)+f(x(t))x′(t)+g(t,x(t−τ(t)))=e(t) 相似文献
4.
In this paper, we use the coincidence degree theory to establish new results on the existence and uniqueness of T-periodic solutions for the first order neutral functional differential equation of the form
(x(t)+Bx(t−δ))′=g1(t,x(t))+g2(t,x(t−τ))+p(t). 相似文献
5.
Hassan A. El-Morshedy 《Nonlinear Analysis: Theory, Methods & Applications》2011,74(10):3353-3362
This paper contains new estimates for the distance between adjacent zeros of solutions of the first order delay differential equation
x′(t)+p(t)x(t−τ)=0 相似文献
6.
Qi Long 《Applied mathematics and computation》2009,212(2):357-365
By employing a class of new functions Φ=Φ(t,s,l) and a generalized Riccati technique, some new oscillation and interval oscillation criteria are established for the second-order nonlinear differential equation
(r(t)y′(t))′+Q(t,y(t),y′(t))=0. 相似文献
7.
Bing Liu 《Journal of Mathematical Analysis and Applications》2005,309(1):313-321
With the help of the coincidence degree continuation theorem, the existence of periodic solutions of a nonlinear second-order differential equation with deviating argument
x″(t)+f1(x(t))x′(t)+f2(x(t))(x′(t))2+g(x(t−τ(t)))=0, 相似文献
8.
In this paper we study the existence of positive solutions of the equation
(φ(x′))′+a(t)f(x(t))=0, 相似文献
9.
Xiaojing Yang 《Journal of Mathematical Analysis and Applications》2005,303(1):304-314
In this paper, we consider the unboundedness problem of solutions for the following asymmetric oscillator:
(φp(x′))′+(p−1)[αφp(x+)−βφp(x−)]=f(x,x′,t), 相似文献
10.
As p-Laplacian equations have been widely applied in the field of fluid mechanics and nonlinear elastic mechanics, it is necessary to investigate the periodic solutions of functional differential equations involving the scalar p-Laplacian. By using Lu’s continuation theorem, which is an extension of Manásevich-Mawhin, we study the existence of periodic solutions for a Rayleigh type p-Laplacian equation
(φp(x′(t)))′+f(x′(t))+g1(x(t-τ1(t,|x|∞)))+β(t)g2(x(t-τ2(t,|x|∞)))=e(t). 相似文献
11.
In this paper, we are concerned with the oscillation of third order nonlinear delay differential equations of the form
(r2(t)(r1(t)y′)′)′+p(t)y′+q(t)f(y(g(t)))=0. 相似文献
12.
Tiziana Cardinali 《Journal of Mathematical Analysis and Applications》2005,308(2):620-635
In this paper we deal with a Cauchy problem governed by the following semilinear evolution differential inclusion:
x′(t)∈A(t)x(t)+F(t,x(t)) 相似文献
13.
In this paper, we use the coincidence degree theory to establish new results on the existence of T-periodic solutions for the Liénard type p-Laplacian equation with a deviating argument of the form:
相似文献
(?p(x′(t)))′+f(x(t))x′(t)+g(t,x(t-τ(t)))=e(t).
14.
Qing-Hai HaoFang Lu 《Applied mathematics and computation》2011,217(17):7126-7131
In this paper, we are concerned with the oscillation of second order superlinear differential equations of the form
(a(t)y′(t))′+p(t)y′(t)+q(t)f(y(t))=0. 相似文献
15.
Xinping Wang 《Journal of Mathematical Analysis and Applications》2011,378(1):76-88
In this paper, we are concerned with the sublinear reversible systems with a nonlinear damping and periodic forcing term
x″+f(x)g(x′)+γ|x|α−1x=p(t), 相似文献
16.
Özkan Öcalan 《Journal of Mathematical Analysis and Applications》2007,331(1):644-654
In this paper, we provide oscillation properties of every solution of the neutral differential equation with positive and negative coefficients
[x(t)−R(t)x(t−r)]′+P(t)x(t−τ)−Q(t)x(t−σ)=0, 相似文献
17.
In this paper, we employ fixed point theorem and functional equation theory to study the existence of positive periodic solutions of the delay differential equation
x′(t)=α(t)x(t)-β(t)x2(t)+γ(t)x(t-τ(t))x(t). 相似文献
18.
Seshadev Padhi 《Applied mathematics and computation》2010,216(8):2450-2456
This paper is concerned with the existence of three positive T-periodic solutions of the first order functional differential equations of the form
x′(t)=a(t)x(t)-λb(t)f(t,x(h(t))), 相似文献
19.
X.H. Tang 《Journal of Mathematical Analysis and Applications》2006,322(2):864-872
In this paper, we proved that the odd order nonlinear neutral delay differential equation
[x(t)−p(t)g(x(t−τ))](n)+q(t)h(x(t−σ))=0 相似文献
20.
In this paper, we use the coincidence degree theory to establish new results on the existence of T-periodic solutions for the Rayleigh equation with a deviating argument of the form
x″+f(x′(t))+g(t,x(t−τ(t)))=p(t). 相似文献