983 resultados para Elliptic Integrals


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2000 Mathematics Subject Classification: 26A33, 42B20

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2000 Mathematics Subject Classification: Primary 26A33, 30C45; Secondary 33A35

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2000 Mathematics Subject Classification: Primary 30C45, Secondary 26A33, 30C80

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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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Mathematics Subject Classification: 26A33, 76M35, 82B31

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

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2000 Mathematics Subject Classification: 45A05, 45B05, 45E05,45P05, 46E30

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Mathematics Subject Classification: 33D60, 33D90, 26A33

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

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AMS Subj. Classification: 65D07, 65D30.

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An nonlinear elliptic system for generating adaptive quadrilateral meshes in curved domains is presented. The presented technique has been implemented in the C++ language with the help of the standard template library. The software package writes the converged meshes in the GMV and the Matlab formats. Grid generation is the first very important step for numerically solving partial differential equations. Thus, the presented C++ grid generator is extremely important to the computational science community.

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This article goes into the development of NURBS models of quadratic curves and surfaces. Curves and surfaces which could be represented by one general equation (one for the curves and one for the surfaces) are addressed. The research examines the curves: ellipse, parabola and hyperbola, the surfaces: ellipsoid, paraboloid, hyperboloid, double hyperboloid, hyperbolic paraboloid and cone, and the cylinders: elliptic, parabolic and hyperbolic. Many real objects which have to be modeled in 3D applications possess specific features. Because of this these geometric objects have been chosen. Using the NURBS models presented here, specialized software modules (plug-ins) have been developed for a 3D graphic system. An analysis of their implementation and the primitives they create has been performed.

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Mathematics Subject Classification 2010: 45DB05, 45E05, 78A45.

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

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Mathematical Subject Classification 2010:26A33, 33E99, 15A52, 62E15.