43 resultados para Generalized Hypergeometric Function

em Bulgarian Digital Mathematics Library at IMI-BAS


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2000 Mathematics Subject Classification: 26A33, 33C20

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2000 Mathematics Subject Classification: 33C60, 33C20, 44A15

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Mathematics Subject Classification: 26A33, 33C20.

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2000 Mathematics Subject Classification: 26A33, 33C45

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A rough set approach for attribute reduction is an important research subject in data mining and machine learning. However, most attribute reduction methods are performed on a complete decision system table. In this paper, we propose methods for attribute reduction in static incomplete decision systems and dynamic incomplete decision systems with dynamically-increasing and decreasing conditional attributes. Our methods use generalized discernibility matrix and function in tolerance-based rough sets.

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We introduce a modification of the familiar cut function by replacing the linear part in its definition by a polynomial of degree p + 1 obtaining thus a sigmoid function called generalized cut function of degree p + 1 (GCFP). We then study the uniform approximation of the (GCFP) by smooth sigmoid functions such as the logistic and the shifted logistic functions. The limiting case of the interval-valued Heaviside step function is also discussed which imposes the use of Hausdorff metric. Numerical examples are presented using CAS MATHEMATICA.

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Mathematics Subject Classification: 26A33, 33E12, 33C20.

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Mathematics Subject Classification: 33C60, 33C20, 44A15

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In this paper, we introduce a further generalization of the gamma function involving Gauss hypergeometric function 2F1 (a, b; c; z)

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

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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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Dedicated to 75th birthday of Prof. A.M. Mathai, Mathematical Subject Classification 2010:26A33, 33C10, 33C20, 33C50, 33C60, 26A09

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