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On the Method of Upper and Lower Solutions in Abstract Cones
(University of Texas at Arlington, 1981-02)
**Please note that the full text is embargoed**
Monotone Technique for Periodic Solutions of Differential Equations
(University of Texas at Arlington, 1982-07)
**Please note that the full text is embargoed** ABSTRACT: The existence of periodic solutions has received
a great deal of attention in recent years [1,7-11,14]. In [8,11] the existence of solutions of first
and ...