On extremal fixed points in Schauder's theorem with applications to differential equations
Author(s) -
José Ángel Cid
Publication year - 2004
Publication title -
bulletin of the belgian mathematical society - simon stevin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.36
H-Index - 31
eISSN - 2034-1970
pISSN - 1370-1444
DOI - 10.36045/bbms/1080056156
Subject(s) - fixed point theorem , mathematics , schauder fixed point theorem , fixed point , brouwer fixed point theorem , boundary value problem , operator (biology) , picard–lindelöf theorem , mathematical analysis , kakutani fixed point theorem , pure mathematics , biochemistry , chemistry , repressor , transcription factor , gene
We derive necessary and sufficient conditions for the existence of a least and a greatest fixed point of an operator which satisfies the hypothesis of Schauder’s theorem. The so obtained results are applied to prove existence of extremal solutions for some initial and boundary value problems.
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