V. Lakshmikantham et al., Another approach to the theory of differential inequalities relative to changes in the initial times, J INEQUAL A, 4(2), 1999, pp. 163-174
In Lakshmikantam ei al,, J. Nonlinear Analysis Appl. (to appear), Lakshmika
ntam and Vatsala, J. Inequalities Appl. (to appear) and Shaw and Yakur (to
appear), the investigation of the initial value problems of differential eq
uations relative to the changes in the initial time is initiated and an app
roach is discussed. In this paper, another direction is taken to study the
same situation obtaining different set of conditions.