Results 21 to 30 of about 977,904 (291)
Signal Propagation in Electromagnetic Media Modelled by the Two-Sided Fractional Derivative
Fractal and Fractional, 2021 In this paper, wave propagation is considered in a medium described by a fractional-order model, which is formulated with the use of the two-sided fractional derivative of Ortigueira and Machado.
Jacek Gulgowski +2 more
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Canonisation reper of complex of lines of theree-dimensional flag
Қарағанды университетінің хабаршысы. Математика сериясы, 2016 The paper studies the three-parameter geometric image of the line - a complex of line of three-dimensional space of the flag. It identifies the main forms that depend linearly on three basic parameters diferentials.
A.T. Musin
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Theorem on the differentiation of a composite function with a vector argument; pp. 195–200 [PDF]
Proceedings of the Estonian Academy of Sciences, 2010 The paper provides a theorem on the differentiation of a composite function with a vector argument. The theorem shows how the partial derivative of the total derivative of the composite function can be expressed through the total derivative of the ...
Vadim Kaparin, Ülle Kotta
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A Crank–Nicolson Compact Difference Method for Time-Fractional Damped Plate Vibration Equations
Axioms, 2022 This paper discusses the Crank–Nicolson compact difference method for the time-fractional damped plate vibration problems. For the time-fractional damped plate vibration equations, we introduce the second-order space derivative and the first-order time ...
Cailian Wu +3 more
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On a Fractional Operator Combining Proportional and Classical Differintegrals
Mathematics, 2020 The Caputo fractional derivative has been one of the most useful operators for modelling non-local behaviours by fractional differential equations. It is defined, for a differentiable function f ( t ) , by a fractional integral operator applied to
Dumitru Baleanu +2 more
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Fractal and Fractional, 2022 In this paper, efficient methods seeking the numerical solution of a time-fractional fourth-order differential equation with Caputo’s derivative are derived. The solution of such a problem has a weak singularity near the initial time t=0. The Caputo time-
Zhen Wang
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The Derivations of Temporal Logic Formulas [PDF]
Formalized Mathematics, 2012 Summary This is a preliminary article to prove the completeness theorem of an extension of basic propositional temporal logic. We base it on the proof of completeness for basic propositional temporal logic given in [12]. We introduce n-ary connectives and prove their properties. We derive temporal logic formulas.
openaire +2 more sources
Desert soil clay content estimation using reflectance spectroscopy preprocessed by fractional derivative. [PDF]
PLoS ONE, 2017 Effective pretreatment of spectral reflectance is vital to model accuracy in soil parameter estimation. However, the classic integer derivative has some disadvantages, including spectral information loss and the introduction of high-frequency noise.
Jingzhe Wang +6 more
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A Perturbed Trapezoid Inequality in Terms of the Third Derivative and Applications [PDF]
, 2001 Some error estimates in terms of the p−norms of the third derivative for the remainder in a perturbed trapezoid formula are given. Applications to composite quadrature formulae, for the expectation of a random variable and for Hermite-Hadamard divergence
Dragomir, Sever S, Barnett, Neil S
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Derivation Power Sums of Even Integer Number Formula
مجلة بغداد للعلوم, 2013 This paper included derivative method for the even r power sums of even integer numbers formula to approach high even (r+2) power sums of even integer numbers formula so on we can approach from derivative odd r power sums of even integer numbers formula ...
Baghdad Science Journal
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