Ladde, G. S.; Pachpatte, B. G.; Lakshmikantham, V.(University of Texas at Arlington, 1980-12)
**Please note that the full text is embargoed** ABSTRACT: In employing the method of upper and lower solutions to dynamical systems, one is required to impose a certain monotone property on the given system [5,6,11] When ...
Ladde, G. S.; Vatsala, A. S.; Lakshmikantham, V.(University of Texas at Arlington, 1980-08)
**Please note that the full text is embargoed** ABSTRACT: In the study of comparison theorems, existence of extremal solutions and monotone iterative techniques for differential systems a property called quasimonotone ...