ar X iv : 0 80 6 . 47 09 v 1 [ m at h . C A ] 2 8 Ju n 20 08 Retarded integral inequalities of Gronwall - Bihari type

نویسندگان

  • Rui A. C. Ferreira
  • Delfim F. M. Torres
چکیده

Such inequalities have been then used on general time scales, including discretetime versions of (1) and (2) (see [3]). In the present note we generalize both inequalities (1) and (2) in a different direction, by considering more general retarded inequalities, i.e., by letting the upper limit of the integrals to be C1 nondecreasing functions less than or equal to t (cf. (4) and (10) below). Moreover, our generalized inequalities (4) and (10) are considered under less restrictive assumptions on the involved functions, e.g., in [2] the function Φ(·) is assumed to be subadditive and submultiplicative, while here we only assume submultiplicativity.

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تاریخ انتشار 2008