The Fermat, Roll and Lagrange theorems are generalized into the class of nondifferentiable functions, the necessary and sufficient conditions for monotonicity one variable functions are given.

Original languageEnglish
Pages (from-to)637-648
Number of pages12
JournalItalian Journal of Pure and Applied Mathematics
Issue number41
StatePublished - Feb 2019

    Scopus subject areas

  • Mathematics(all)

    Research areas

  • Almost periodic solution, Derived number, Dini-Hölder derived number, Nonsmooth analysis, Periodic solution, periodic solution, derived number, Dini-Holder derived number, almost periodic solution, nonsmooth analysis

ID: 41311227