960 resultados para Fractional Dirac operator


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2000 Mathematics Subject Classification: Primary 46F12, Secondary 44A15, 44A35

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2000 Mathematics Subject Classification: 26A33 (primary), 35S15

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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, 44A15, 35K55

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Mathematics Subject Classification: 47A56, 47A57,47A63

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

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Mathematics Subject Classification 2010: 26A33, 33E12, 35S10, 45K05.

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

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MSC 2010: 30C45, 30A20, 34A40

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

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MSC 2010: 30C45, 30A20, 34C40

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MSC 2010: 35R11, 42A38, 26A33, 33E12

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In this paper, we present a new numerical method to solve fractional differential equations. Given a fractional derivative of arbitrary real order, we present an approximation formula for the fractional operator that involves integer-order derivatives only. With this, we can rewrite FDEs in terms of a classical one and then apply any known technique. With some examples, we show the accuracy of the method.

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In this paper we consider a Caputo type fractional derivative with respect to another function. Some properties, like the semigroup law, a relationship between the fractional derivative and the fractional integral, Taylor’s Theorem, Fermat’s Theorem, etc., are studied. Also, a numerical method to deal with such operators, consisting in approximating the fractional derivative by a sum that depends on the first-order derivative, is presented. Relying on examples, we show the efficiency and applicability of the method. Finally, an application of the fractional derivative, by considering a Population Growth Model, and showing that we can model more accurately the process using different kernels for the fractional operator is provided.

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In this paper we present a new type of fractional operator, the Caputo–Katugampola derivative. The Caputo and the Caputo–Hadamard fractional derivatives are special cases of this new operator. An existence and uniqueness theorem for a fractional Cauchy type problem, with dependence on the Caputo–Katugampola derivative, is proven. A decomposition formula for the Caputo–Katugampola derivative is obtained. This formula allows us to provide a simple numerical procedure to solve the fractional differential equation.