31 resultados para Fractional derivatives


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Mathematics Subject Classification: 26A33, 74B20, 74D10, 74L15

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2000 Math. Subject Classification: 26A33; 33E12, 33E30, 44A15, 45J05

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Mathematics Subject Classi¯cation 2010: 26A33, 65D25, 65M06, 65Z05.

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MSC 2010: 26A33, 44A45, 44A40, 65J10

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2000 Mathematics Subject Classification: 41A25, 41A36, 40G15.

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2000 Mathematics Subject Classification: 41A25, 41A36.

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2000 Mathematics Subject Classification: 26A33 (main), 44A40, 44A35, 33E30, 45J05, 45D05

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Mathematics Subject Classification 2010: 26A33, 33E12.

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A relation showing that the Grünwald-Letnikov and generalized Cauchy derivatives are equal is deduced confirming the validity of a well known conjecture. Integral representations for both direct and reverse fractional differences are presented. From these the fractional derivative is readily obtained generalizing the Cauchy integral formula.

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Mathematics Subject Classification: 26A33, 33C20.

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This survey is devoted to some fractional extensions of the incomplete lumped formulation, the lumped formulation and the formulation of Lauwerier of the temperature field problem in oil strata. The method of integral transforms is used to solve the corresponding boundary value problems for the fractional heat equation. By using Caputo’s differintegration operator and the Laplace transform, new integral forms of the solutions are obtained. In each of the different cases the integrands are expressed in terms of a convolution of two special functions of Wright’s type.

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2000 Mathematics Subject Classification: 26A33, 33C60, 44A20

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Mathematics Subject Classification 2010: 35M10, 35R11, 26A33, 33C05, 33E12, 33C20.

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MSC 2010: 44A20, 33C60, 44A10, 26A33, 33C20, 85A99