检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《太原科技大学学报》2006年第6期496-500,共5页Journal of Taiyuan University of Science and Technology
摘 要:文章在与其相应线性算子的第一特征值有关的条件下,讨论了四阶边值问题u(4)(t)=b(t)f(u(t))满足u′(0)=u″(0)=u(0)=0及u(1)=u′(1)正解的存在性,其中f∈C([0,∞),[0,∞)),b∈C([0,1],[0,∞])且存在t0∈[0,1]使b(t0)>0.利用该问题相应的G reen函数,将其转化为Hamm erste in型积分方程,借助于锥上的不动点指数理论,得到了该问题单个正解存在和多个正解存在的条件。The existence of positive solutions of fourth-order boundary value problem u^(4)(t) = b( t)f( u(t) ) for all t ∈ [0,1 ] subject to u'(0) = u''(0) = u'''(0) =0 and u( 1 ) = u'( 1 ) is studied, where f∈ C( [0,∞ ) ,[0,∞ ) ), b∈( [0,1 ] [0, ∞ ) ), and there exists b ( to ) 〉 0 when to ∈ [ 0, 1 ]. The problem is transformed into Hammerstein integral equation with its corresponding Green function. By applying the fixed-point index theory, the conditions of the existence of single and multiple positive solutions of the above mentioned problem concerning the first eigenvalue of the linear problem, are obtained.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.116.60.124