Results 41 to 50 of about 6,967 (160)

Riemann-Liouville fractional cosine functions

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we present the notion of Riemann-Liouville fractional cosine function. we prove that a Riemann-Liouville alpha-order fractional cosine function is equivalent to the Riemann-Liouville alpha-order fractional resolvent introduced in [15]
Zhan-Dong Mei, Ji-Gen Peng
doaj  

$\alpha$-Differentiable functions in complex plane

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
In this paper, the conformable fractional derivative of order $\alpha$ is defined in complex plane. Regarding to multi-valued function $z^{1-\alpha}$, we obtain fractional Cauchy–Riemann equations which in case of $\alpha=1$ give classical Cauchy ...
Ronak Pashaei   +3 more
doaj   +1 more source

Inequalities Pertaining Fractional Approach through Exponentially Convex Functions

open access: yesFractal and Fractional, 2019
In this article, certain Hermite-Hadamard-type inequalities are proven for an exponentially-convex function via Riemann-Liouville fractional integrals that generalize Hermite-Hadamard-type inequalities.
Saima Rashid   +2 more
doaj   +1 more source

A kind of identities related to Riemann zeta-function

open access: yesOpen Mathematics
The main purpose of this paper is to study a kind of identities related to Riemann zeta-function. We first construct a new sequence involving trigonometric function.
Chen Zhuoyu, Deng Changlin
doaj   +1 more source

The Extension of the Riemann’s Zeta Function

open access: yesInternational Journal of Basic Sciences and Applied Computing
In mathematics, the search for exact formulas giving all the prime numbers, certain families of prime numbers or the n-th prime number has generally proved to be vain, which has led to contenting oneself with approximate formulas [8]. The purpose of this article is to give a new proof of the Riemann hypothesis [4]-which is closely related to the ...
openaire   +2 more sources

Nonclassical shock waves of conservation laws: Flux function having two inflection points

open access: yesElectronic Journal of Differential Equations, 2006
We consider the Riemann problem for non-genuinely nonlinear conservation laws where the flux function admits two inflection points. This is a simplification of van der Waals fluid pressure, which can be seen as a function of the specific volume for a ...
Ho Dac Nghia, Mai Duc Thanh
doaj  

Discrete universality theorem for Matsumoto zeta-functions and nontrivial zeros of the Riemann zeta-function

open access: yesMathematical Modelling and Analysis
In 2017, Garunkštis, Laurinčikas and Macaitienė proved the discrete universality theorem for the Riemann zeta-function shifted by imaginary parts of nontrivial zeros of the Riemann zeta-function.
Keita Nakai
doaj   +1 more source

Solving the solution of Goursat problem using the Riemann method for a system of fourth order hyperbolic differential equations

open access: yesВестник Самарского университета: Естественнонаучная серия
Boundary value problems for certain systems of hyperbolic-type differential equations can be effectively solved using the Riemann method. In this paper, we consider an approach for constructing the Riemann matrix for a system of fourth order hyperbolic ...
Ju. O. Yakovleva
doaj   +1 more source

Stieltjes–Bethe equations in higher genus and branched coverings with even ramifications

open access: yesNuclear Physics B, 2018
We describe projective structures on a Riemann surface corresponding to monodromy groups which have trivial SL(2) monodromies around singularities and trivial PSL(2) monodromies along homologically non-trivial loops on a Riemann surface.
Dmitry Korotkin
doaj   +1 more source

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