Well-ordered and non-well-ordered lower and upper solutions for periodic 2N-dimensional systems
DOI:
https://doi.org/10.12775/TMNA.2024.026Keywords
Lower and upper solutions, periodic systems, degree theory, coincidence degreeAbstract
In this paper we consider a class of periodic problems associated with $2N$-dimensional systems of differential equations. Our aim is to generalize the theory of lower and upper solutions following the way paved in previous works. After a careful analysis of the dynamics in the phase space, the proofs take advantage of topological degree arguments.References
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