Results 11 to 20 of about 977,904 (291)

Derivative and higher-order Cauchy integral formula of matrix functions

open access: yesOpen Mathematics, 2021
The derivative of a nn-order matrix function on the complex field is usually defined as a n2{n}^{2}-order matrix, which is not suitable for generalizing Cauchy integral formula of matrix functions to its higher-order derivative form. In this paper, a new
Huang Xiaojie, Liu Zhixiu, Wu Chun
doaj   +2 more sources

Derivative formula for capacities

open access: yes
We obtain a derivative formula for various notions of capacity. Namely we identify the second order term in the asymptotic expansion of the capacity of a union of two sets, as their distance goes to infinity. Our result applies to the usual Newtonian capacity in the setting of random walks on the Euclidean lattice, to the family of Bessel-Riesz ...
Asselah, Amine   +2 more
core   +11 more sources

Estimates For An Integral In Lp Norm Of The (N + 1)-Th Derivative Of Its Integrand [PDF]

open access: yes, 2000
Basing on Taylor’s formula with an integral remaider, an integral is estimated in Lp norm of the (n + 1)-th derivative of its integrand, and the Iyengar’s inequality and many other useful inequalities are ...
Qi, Feng, Guo, Bai-Ni
core   +7 more sources

Extension of exton's hypergeometric function K16

open access: yesCubo, 2021
The purpose of this article is to introduce an extension of Exton's hypergeometric function K16 by using the extended beta function given by Özergin et al. [11].
Ahmed Ali Atash, Maisoon Ahmed Kulib
doaj   +1 more source

A Series Expansion of a Logarithmic Expression and a Decreasing Property of the Ratio of Two Logarithmic Expressions Containing Sine

open access: yesMathematics, 2023
In the paper, by virtue of a derivative formula for the ratio of two differentiable functions and with the help of a monotonicity rule, the authors expand a logarithmic expression involving the sine function into the Maclaurin power series in terms of ...
Xin-Le Liu, Hai-Xia Long, Feng Qi
doaj   +1 more source

Calculation of Two Types of Quaternion Step Derivatives of Elementary Functions

open access: yesMathematics, 2021
We aim to get the step derivative of a complex function, as it derives the step derivative in the imaginary direction of a real function. Given that the step derivative of a complex function cannot be derived using i, which is used to derive the step ...
Ji Eun Kim
doaj   +1 more source

Some New Bounds for the Čebyšev Functional in Terms of the First Derivative and Applications [PDF]

open access: yes, 2004
Some new inequalities for the Čebyšev functional in terms of the first derivative and applications for Taylor’s expansion and generalised trapezoid formula are pointed ...
Cerone, Pietro, Dragomir, Sever S
core   +3 more sources

A series expansion of a logarithmic expression and a decreasing property of the ratio of two logarithmic expressions containing cosine

open access: yesOpen Mathematics, 2023
In this study, by virtue of a derivative formula for the ratio of two differentiable functions and with aid of a monotonicity rule, the authors expand a logarithmic expression involving the cosine function into the Maclaurin power series in terms of ...
Li Yan-Fang, Qi Feng
doaj   +1 more source

Electrical Circuits RC, LC, and RLC under Generalized Type Non-Local Singular Fractional Operator

open access: yesFractal and Fractional, 2021
The current study is of interest when performing a useful extension of a crucial physical problem through a non-local singular fractional operator. We provide solutions that include three arbitrary parameters α, ρ, and γ for the Resistance-Capacitance ...
Bahar Acay, Mustafa Inc
doaj   +1 more source

Numerical Solution of Nonlinear Fractional Diffusion Equation in Framework of the Yang–Abdel–Cattani Derivative Operator

open access: yesFractal and Fractional, 2021
In this manuscript, the time-fractional diffusion equation in the framework of the Yang–Abdel–Cattani derivative operator is taken into account. A detailed proof for the existence, as well as the uniqueness of the solution of the time-fractional ...
Igor V. Malyk   +4 more
doaj   +1 more source

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