Browsing by Author "Torres, Delfim F. M."

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    Existence of solution to a nonlocal conformable fractional thermistor problem
    (Ankara Üniversitesi Fen Fakültesi, 2019-02-01) Ammi, Moulay Rchid Sidi; Torres, Delfim F. M.; Other; Other
    We study a nonlocal thermistor problem for fractional derivatives in the conformable sense. Classical Schauder's fixed point theorem is used to derive the existence of a tube solution.
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    Structural derivatives on time scales
    (Ankara Üniversitesi Fen Fakültesi, 2019-02-01) Bayour, Benaoumeur; Torres, Delfim F. M.; Other; Other
    We introduce the notion of structural derivative on time scales. The new operator of differentiation unifies the concepts of fractal and fractional order derivative and is motivated by lack of classical differentiability of some self-similar functions. Some properties of the new operator are proved and illustrated with examples.