Results 11 to 20 of about 90,046 (266)

On a Fractional Operator Combining Proportional and Classical Differintegrals

open access: yesMathematics, 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
doaj   +1 more source

A Crank–Nicolson Compact Difference Method for Time-Fractional Damped Plate Vibration Equations

open access: yesAxioms, 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
doaj   +1 more source

Desert soil clay content estimation using reflectance spectroscopy preprocessed by fractional derivative. [PDF]

open access: yesPLoS 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
doaj   +1 more source

Numerical Analysis of Local Discontinuous Galerkin Method for the Time-Fractional Fourth-Order Equation with Initial Singularity

open access: yesFractal 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
doaj   +1 more source

The Derivations of Temporal Logic Formulas [PDF]

open access: yesFormalized 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

Derivation Power Sums of Even Integer Number Formula

open access: yesمجلة 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
doaj   +1 more source

Ulam-Type Stability Results for Variable Order Ψ-Tempered Caputo Fractional Differential Equations

open access: yesFractal and Fractional, 2023
An initial value problem for nonlinear fractional differential equations with a tempered Caputo fractional derivative of variable order with respect to another function is studied.
Donal O’Regan   +2 more
doaj   +1 more source

Analogues of Jacobi’s derivative formula [PDF]

open access: yesThe Ramanujan Journal, 2015
In this paper, we obtain analogues of Jacobi's derivative formula in terms of the theta constants with rational characteristics. For this purpose, we use the arithmetic formulas of the number of representations of a natural number $n,\,\,(n=1,2,\ldots)$ as the sum of two squares, or the sum of a square and twice a square.
openaire   +3 more sources

Thomae’s derivative formulae for trigonal curves [PDF]

open access: yesLetters in Mathematical Physics, 2019
21 pages, mainly added two references and Remark 3 ...
Enolski, Victor   +2 more
openaire   +3 more sources

New Fractional Cancer Mathematical Model via IL-10 Cytokine and Anti-PD-L1 Inhibitor

open access: yesFractal and Fractional, 2023
In this study, we explore a recent biological model created to analyze the behavior of cancer cells by administering a dose of a drug containing anti-PD-L1 and IL-10 with the Caputo and Atangana–Baleanu derivative in the Caputo sense (ABC).
Esmehan Uçar, Necati Özdemir
doaj   +1 more source

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