山西大学学报(自然科学版)
山西大學學報(自然科學版)
산서대학학보(자연과학판)
JOURNAL OF SHANXI UNIVERSITY
2006年
2期
125-127
,共3页
四阶奇异边值问题%多个正解%不动点指数%锥
四階奇異邊值問題%多箇正解%不動點指數%錐
사계기이변치문제%다개정해%불동점지수%추
fourth order singular boundary value problem%multiple positive solutions%fixed point index%Cone
利用算子方程的一些抽象结果来讨论四阶奇异边值问题.在非线性项f满足一定条件时,得到λ*∈(0,+∞),使得当λ∈(0,λ*)时,问题至少有两个正解;当λ=λ*时,至少有一个正解;λ>λ*时,没有正解.
利用算子方程的一些抽象結果來討論四階奇異邊值問題.在非線性項f滿足一定條件時,得到λ*∈(0,+∞),使得噹λ∈(0,λ*)時,問題至少有兩箇正解;噹λ=λ*時,至少有一箇正解;λ>λ*時,沒有正解.
이용산자방정적일사추상결과래토론사계기이변치문제.재비선성항f만족일정조건시,득도λ*∈(0,+∞),사득당λ∈(0,λ*)시,문제지소유량개정해;당λ=λ*시,지소유일개정해;λ>λ*시,몰유정해.
By some abstract results of operator equation ,the fourth order singular boundary value problem was discussed. Under certain conditions on f(t,u),we find λ* >0 such that the problem has at least two positive solutions for λ∈ (0,λ*),atleast one positive solution for λ=λ* ,and no positive solutions for λ>λ*.