Vatsala, A. S.; Lakshmikantham, V.; Vaughn, Randy(University of Texas at Arlington, 1978-09)
**Please note that the full text is embargoed** ABSTRACT: Recently [2] a class of new differential equations called Sobolev type differential equations was introduced and Picard type existence theorem for such equations ...
Lakshmikantham, V.; Ladde, G. S.(University of Texas at Arlington, 1978-06)
**Please note that the full text is embargoed** ABSTRACT: It is well known [3] that the method of differential inequalities plays an important role in the qualitative theory of differential equations. It is therefore natural ...