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大小：526.62 KB
页数：43页
时间：2020-03-20
《几类非线性中立型微分方程的振动性研究.pdf》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
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11、m−1z′(t)+q(t)f(t,x[σ(t)])=0,t≥t(2.1.1)0tDZt−1limrm(s)ds=∞t→∞t0,Zt−1limrm(s)ds<∞t→∞t0R 5(m>0,0z(t)=x(t)+p(t)x[τ(t)]."}y$ooxRZ^;m#tyx^URRiccati )-v$b4j1#T7TEYhz1Vvp7Z′br(t)ψ(x(t))(x(t)+p(t)x[τ(t)])′+q(t,ξ)f(x[g(t,ξ)])dσ(ξ)=0,t≥t(3.1.1)
12、0atD0≤p(t)≤1,−µ≤p(t)<0,µ∈(0,1)i6
13、RnHAp^AR 5!vTaR;{#ty EYCnt"5z1vp7Xm(n)[x(t)+p(t)x(τ(t))]+qi(t)fi(x(σi(t)))=0,t≥t0(4.1.1)i=1R 5(n mR4iÆxr9nÆxr9u#6{2X℄6Riccati *.x%5kii6
14、RnHAp^AAbstractAlongwithscience’sandtechnology’sdevelopmen
15、t,theproblemsaboutdif-ferentialequationhavecomeupfromthefieldsofphysics,chemisty,mathemat-ics,biology,medicine,economics,engineering,cybernetics,andtheseproblemshasarousedpeople’swidespreadattentiondaybyday.However,thedifferentialequationofferseffectivetheoretict
16、oolsfortheseproblems,anditisasubjectofprofoundtheoriesandbroadapplications.Theoscillationofordinarydifferentialequationisoneofimportantbranchofdifferentialequations.Ithasdeepphysicalbackgroundandmathematicalmodels.Inthelastdecades,manyscholarstakeontheresearcho
17、fthisfield,theyhaveachievedmanygoodresults.Inthispaper,weemployageneralizedRicattitransformation,estimationsofinequalities,integralaveragetechniqueandmonotonicityofafunctiontoin-vestigatet
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