SYSTEMS-DISCONJUGACY OF A FOURTH-ORDER DIFFERENTIAL EQUATION WITH A MIDDLE TERM

被引：0
|
作者：
Ben Amara, Jamel [1 ]
机构：
[1] Univ Tunis El Manar, Fac Sci Tunis, Tunis, Tunisia
来源：
ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS | 2016年
关键词：
Fourth-order boundary value problems; system-conjugate points; subwronskians; comparison theorems; SELF-ADJOINT; ORDER;
D O I：
暂无
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
Systems-conjugate points were introduced and studied by Barrett [3] in relation with the self-adjoint fourth order differential equation (r(x)y '')'' - (q(x)y')' = p(x)y, where r(x) > 0, p(x) > 0 and q equivalent to 0. In this paper we extend some of his results to more general cases, when q(x) is free of sign restrictions.
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页数：11
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