965 resultados para Fractional partial differential equation
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2000 Math. Subject Classification: Primary 42B20, 42B25, 42B35
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2000 Mathematics Subject Classification: 26A33, 33C60, 44A15, 35K55
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Mathematics Subject Classification: 26A33, 34A37.
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Mathematics Subject Classification: 45G10, 45M99, 47H09
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2000 Mathematics Subject Classification: Primary 46F25, 26A33; Secondary: 46G20
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Mathematical Subject Classification 2010: 35R11, 42A38, 26A33, 33E12.
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Dedicated to Professor A.M. Mathai on the occasion of his 75-th birthday. Mathematics Subject Classi¯cation 2010: 26A33, 44A10, 33C60, 35J10.
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MSC 2010: 26A33, 44A45, 44A40, 65J10
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MSC 2010: 26A33, 33E12, 34K29, 34L15, 35K57, 35R30
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MSC 2010: 34A08, 34A37, 49N70
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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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Researchers have engrossed fractional-order modeling because of its ability to capture phenomena that are nearly impossible to describe owing to its long-term memory and inherited properties. Motivated by the research in fractional modeling, a fractional-order prototype for a flexible satellite whose dynamics are governed by fractional differential equations is proposed for the first time. These relations are derived using fractional attitude dynamic description of rigid body simultaneously coupled with the fractional Lagrange equation that governs the vibration of the appendages. Two attitude controls are designed in the presence of the faults and uncertainties of the system. The first is the fractional-order feedback linearization controller, in which the stability of the internal dynamics of the system is proved. The second is the fractional-order sliding mode control, whose asymptotic stability is demonstrated using the quadratic Lyapunov function. Several nonlinear simulations are implemented to analyze the performance of the proposed controllers.
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In this paper we discuss the existence of mild, strict and classical solutions for a class of abstract integro-differential equations in Banach spaces. Some applications to ordinary and partial integro-differential equations are considered.
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In this paper we discuss the existence of solutions for a class of abstract partial neutral functional differential equations.