RT Journal T1 Uniqueness of solution for singular boundary value problems of fourth-order differential equations A1 PB JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) FD 2017-02-20 YR 2017 JF JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) VO 52 IS 2 SP 73 DO 10.6040/j.issn.1671-9352.0.2016.027 K1 uniqueness of solution;singular boundary value problem;contraction mapping principle;#i#u#sub##/i##/sub#0-norm LK {http://lxbwk.njournal.sdu.edu.cn/EN/article/article_2260.shtml}