共查询到20条相似文献,搜索用时 31 毫秒
1.
张国初 《应用数学和力学(英文版)》1989,10(11):1039-1049
In this paper we are interested in the large time behavior of the nonlinear diffusionequationu_1=(φ(u))_xx φ(u), x∈R,t∈R~ =(0, ∞))We consider functionsφ(u)andφ(u)which allow the equation to possess travelingwave solutions.We first present an existence and uniqueness as well as some comparisonprinciple result of generalized solutions to the Cauchy problem.Then we give forφ(u)=u(1-u)(u-a)some threshold results,from which we can see that u=a is stable,while u=0 or u=1 is unstable under some assumptions,etc. 相似文献
2.
This paper deals with connected branches of nonstationary periodic trajectories of Hamilton equations
emanating from the degenerate stationary point
for H being the generalized Hénon-Heiles (HH) Hamiltonian:
or the generalized Yang-Mills (YM) Hamiltonian:
The existence of such branches has been proved. Minimal periods of searched trajectories near x0 have been described. 相似文献
3.
彭奇林 《应用数学和力学(英文版)》2001,22(7):842-845
Uptonow ,thequalitativebehaviorofthesecond_ordernonlineardifferentialequationsandtheirapplicationshavebeendiscussedextensivelyinliterature.WerefertotheRefs .[1 -8] .Conversely ,thediscussionforthequalitativebehaviorofthedelaysystemisless .Inthispaper,westudyt… 相似文献
4.
By using comparison theorem and constructing suitable Lyapunov functional, we study the following periodic Lotka–Volterra model with M-predators and N-preys by pure-delay type
A set of easily verifiable sufficient conditions are obtained for the existence and global attractivity of a unique positive almost periodic solution of the above model, which improve and generalize some known results. 相似文献
5.
K. Gopalsamy M. R. S. Kulenović G. Ladas 《Journal of Dynamics and Differential Equations》1990,2(2):117-132
LetP(t) denote the density of mature cells in blood circulation. Mackey and Glass (1977) have proposed the following equations:
相似文献
6.
李永昆 《应用数学和力学(英文版)》1999,20(5):579-584
IntroductionAtpresent,thereareonlyafewpapers[1~3]havingbenpublishedontheglobalexistenceofperiodicsolutionsforneutraldelaypopu... 相似文献
7.
黄先开 《应用数学和力学(英文版)》1999,20(10):1116-1120
IntroductionIntherecentyears,withalotofapplicationsofneuralnetworkmodels,manyauthors[1~3]areinterestedintheresearchofthestructureandperformanceforthesenetworks.BecauseHopfieldneuralnetworkwellsimulatetheecologicalsystem,manystudiesareconcentratedonth… 相似文献
8.
王培光 《应用数学和力学(英文版)》1999,20(6):698-704
IntroductionOwingtotheextensiveapplicationofneutralequations,moreandmorestudieshavebenmadeonthebehaviorofthesolutions[1,2].Fo... 相似文献
9.
A criterion to predict bifurcation of homoclinic orbits instrongly nonlinear self-excited one-degree-of-freedom oscillator
10.
We investigate the dynamics of the semiflow φ induced on H01(Ω) by the Cauchy problem of the semilinear parabolic equation
11.
M. Slemrod 《Journal of Dynamics and Differential Equations》1991,3(1):1-28
This paper examines the asymptotic behavior of measure valued solutions to the initial value problem for the nonlinear heat conduction equation
|
设为首页 | 免责声明 | 关于勤云 | 加入收藏 |
Copyright©北京勤云科技发展有限公司 京ICP备09084417号 |