Systems-disconjugacy of a fourth-order differential equation with a middle term

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=0. In this paper we extend some of his results to more g...

Full description

Bibliographic Details
Main Author: Jamel Ben Amara
Format: Article
Language:English
Published: Texas State University 2016-09-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2016/246/abstr.html