Results 1 to 10 of about 43 (43)

A Cauchy-type generalization of Flett's theorem

open access: yesDemonstratio Mathematica, 2021
We prove a Cauchy-type generalization of Flett’s theorem and note its geometric interpretations. Several other mean value theorems extending further the result, which involve both real and complex functions, are also proved.
Markov Lubomir
doaj   +1 more source

Taylor’s series expansions for real powers of two functions containing squares of inverse cosine function, closed-form formula for specific partial Bell polynomials, and series representations for real powers of Pi

open access: yesDemonstratio Mathematica, 2022
In this article, by virtue of expansions of two finite products of finitely many square sums, with the aid of series expansions of composite functions of (hyperbolic) sine and cosine functions with inverse sine and cosine functions, and in the light of ...
Qi Feng
doaj   +1 more source

Inequalities of trapezoidal type involving generalized fractional integrals

open access: yesAlexandria Engineering Journal, 2020
During the last years several fractional integrals were investigated. Having this idea in mind, in the present article, some new generalized fractional integral inequalities of the trapezoidal type for λφ–preinvex functions, which are differentiable and ...
Dumitru Baleanu   +2 more
doaj   +1 more source

On some mean value theorem via covering argument

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
We show how the full covering argument can be used to prove some type of Cauchy mean value theorem.
Sokołowski Dariusz
doaj   +1 more source

On some properties of the conformable fractional derivative

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
In this paper, we prove that the intermediate value theorem remains true for the conformable fractional derivative and we prove some useful results using the definition of conformable fractional derivative given in R. Khalil, M. Al Horani, A.
Azennar Radouane, Mentagui Driss
doaj   +1 more source

A remark on local fractional calculus and ordinary derivatives

open access: yesOpen Mathematics, 2016
In this short note we present a new general definition of local fractional derivative, that depends on an unknown kernel. For some appropriate choices of the kernel we obtain some known cases. We establish a relation between this new concept and ordinary
Almeida Ricardo   +2 more
doaj   +1 more source

A family of singular functions and its relation to harmonic fractal analysis and fuzzy logic

open access: yesOpen Mathematics, 2016
We study a parameterized family of singular functions which appears in a paper by H. Okamoto and M. Wunsch (2007). Various properties are revisited from the viewpoint of fractal geometry and probabilistic techniques.
de Amo Enrique   +2 more
doaj   +1 more source

Theory and applications of first-order systems of Stieltjes differential equations

open access: yesAdvances in Nonlinear Analysis, 2017
We set up the basic theory of existence and uniqueness of solutions for systems of differential equations with usual derivatives replaced by Stieltjes derivatives.
Frigon Marlène, Pouso Rodrigo López
doaj   +1 more source

On second-order linear Stieltjes differential equations with non-constant coefficients

open access: yesOpen Mathematics
In this work, we define the notions of Wronskian and simplified Wronskian for Stieltjes derivatives and study some of their properties in a similar manner to the context of time scales or the usual derivative.
Fernández Francisco J.   +2 more
doaj   +1 more source

Some well-known inequalities of Ostrowski like for Caputo derivatives

open access: yesApplied Mathematics in Science and Engineering
This paper aims to provide new versions of some known inequalities by applying Caputo fractional derivatives. Ostrowski, Hermite-Hadamard and Ostrowski-Grüss-type inequalities are given. Generalized conditions of existing inequalities are analysed to get
Yonghong Liu   +4 more
doaj   +1 more source

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