260 research outputs found

    Canary Islands geology

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    Peligros asociados a megadeslizamientos y lahares.

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    Fractional-order logistic differential equation with Mittag–Leffler-type Kernel

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    In this paper, we consider the Prabhakar fractional logistic differential equation. By using appropriate limit relations, we recover some other logistic differential equations, giving representations of each solution in terms of a formal power series. Some numerical approximations are implemented by using truncated series.Agencia Estatal de Investigación | Ref. PID2020-113275GB-I00Xunta de Galicia | Ref. ED431C 2019/0

    On the fractional Allee logistic equation in the Caputo sense

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    In the framework of population models, logistic growth and fractional logistic growth has been analyzed. In some situations the so-called Allee effect gives more accurate approximation. In this work, fractional Allee differential equation in the Caputo sense is considered. The solution is obtained by considering formal power series. Numerical computations are presented to compare the truncating series with the classical Allee differential equation.Agencia Estatal de Investigación | Ref. PID2020-113275GB-I00Xunta de Galicia | Ref. Ref. ED431C 2019/0

    Geología y Volcanología de islas volcánicas oceánicas: Canarias-Hawaii

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    Lecciones didácticas de volcanología de Canarias y Hawaii con abundancia de ilustracionesCaja General de Ahorros de Canaria

    On fractional derivatives and primitives of periodic functions

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    We prove that the fractional derivative or the fractional primitive of a -periodic function cannot be a -periodic function, for any period , with the exception of the zero functionThe work of I. Area has been partially supported by the Ministerio de Economía y Competitividad of Spain under Grant MTM2012-38794-C02-01, cofinanced by the European Community fund FEDER. J. J. Nieto also acknowledges partial financial support by the Ministerio de Economía y Competitividad of Spain under Grant MTM2010-15314, cofinanced by the European Community fund FEDER.S

    Turberas y paisaje en el Valle de Toranzo

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