Positive solutions of fourth order problems with clamped beam boundary conditions

n this paper we make an exhaustive study of the fourth order linear operator u((4)) + M u coupled with the clamped beam conditions u(0) = u(1) = u'(0) = u'(1) = 0. We obtain the exact values on the real parameter M for which this operator satisfies an anti-maximum principle. Such a propert...

Full description

Bibliographic Details
Main Author: Cabada, Alberto (author)
Other Authors: Enguiça, Ricardo Roque (author)
Format: article
Language:por
Published: 2013
Subjects:
Online Access:http://hdl.handle.net/10400.21/2229
Country:Portugal
Oai:oai:repositorio.ipl.pt:10400.21/2229