This paper investigates the existence of positive solutions for a fourth-order differential system using a fixed point theorem of cone expansion and compression type.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ap112-3-7,
author = {Ravi P. Agarwal and B. Kovacs and D. O'Regan},
title = {Existence of positive solutions for a fourth-order differential system},
journal = {Annales Polonici Mathematici},
volume = {111},
year = {2014},
pages = {301-312},
zbl = {1319.34037},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap112-3-7}
}
Ravi P. Agarwal; B. Kovacs; D. O'Regan. Existence of positive solutions for a fourth-order differential system. Annales Polonici Mathematici, Tome 111 (2014) pp. 301-312. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap112-3-7/