兰州石化职业技术学院学报
蘭州石化職業技術學院學報
란주석화직업기술학원학보
JOURNAL OF LANZHOU PETROCHEMICAL VOCATIONAL COLLEGE OF TECHNOLOGY
2014年
4期
82-84
,共3页
存在性%正解%不动点%锥
存在性%正解%不動點%錐
존재성%정해%불동점%추
existence%positive solutions%fixed-point%cone
利用锥拉伸与锥压缩不动点定理讨论二阶差分方程周期边值问题,Δ2u(t-1)-ρ2u (t)+λg(t)f(u(t))=0,t∈N,u(0)=u(T),Δu(0)=Δu(T)在f满足超线性与次线性时,当λ>0取不同值,获得了该问题正解的存在性,N∶={1,…,T}。
利用錐拉伸與錐壓縮不動點定理討論二階差分方程週期邊值問題,Δ2u(t-1)-ρ2u (t)+λg(t)f(u(t))=0,t∈N,u(0)=u(T),Δu(0)=Δu(T)在f滿足超線性與次線性時,噹λ>0取不同值,穫得瞭該問題正解的存在性,N∶={1,…,T}。
이용추랍신여추압축불동점정리토론이계차분방정주기변치문제,Δ2u(t-1)-ρ2u (t)+λg(t)f(u(t))=0,t∈N,u(0)=u(T),Δu(0)=Δu(T)재f만족초선성여차선성시,당λ>0취불동치,획득료해문제정해적존재성,N∶={1,…,T}。
By using the tension and the compression fixed -point theorem in cone,we discuss the various existence of positive solutions for the following problemsΔ2u(t-1)-ρ2u(t)+λg(t)f(u(t))=0,t∈,u(0)=u(T),Δu(0)=Δu(T)in terms of different values ofλ,and fsatisfies superlinearity or sublinearity.N={1 ,…,T}.