Results 11 to 20 of about 66,566 (275)

Elfun18 – A collection of MATLAB functions for the computation of elliptic integrals and Jacobian elliptic functions of real arguments

open access: yesSoftwareX, 2019
We outline a set of MATLAB functions that enable the computation of elliptic integrals and Jacobian elliptic functions for real arguments. The correctness, robustness, efficiency, and accuracy of the functions are discussed in detail.
Milan Batista
doaj   +3 more sources

Elliptic polylogarithms and iterated integrals on elliptic curves. Part I: general formalism

open access: yesJournal of High Energy Physics, 2018
We introduce a class of iterated integrals, defined through a set of linearly independent integration kernels on elliptic curves. As a direct generalisation of multiple polylogarithms, we construct our set of integration kernels ensuring that they have ...
Johannes Broedel   +3 more
doaj   +3 more sources

Approximations related to the complete p-elliptic integrals

open access: yesOpen Mathematics, 2022
In this paper, the authors present some monotonicity properties for certain functions involving the complete p-elliptic integrals of the first and second kinds, by showing the monotonicity and concavity-convexity properties of certain combinations ...
Zhong Genhong, Ma Xiaoyan, Wang Fei
doaj   +1 more source

On approximation of functions from the class $L^{\psi}_{\beta, 1}$ by the Abel-Poisson integrals in the integral metric

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
In the paper, we investigate an asymptotic behavior of the sharp upper bounds in the integral metric of deviations of the Abel-Poisson integrals from functions from the class $L^{\psi}_{\beta, 1}$.
T.V. Zhyhallo, Yu.I. Kharkevych
doaj   +1 more source

Iterated Elliptic and Hypergeometric Integrals for Feynman Diagrams [PDF]

open access: yes, 2017
We calculate 3-loop master integrals for heavy quark correlators and the 3-loop QCD corrections to the $\rho$-parameter. They obey non-factorizing differential equations of second order with more than three singularities, which cannot be factorized in ...
Ablinger, J.   +7 more
core   +1 more source

On a procedure to derive ϵ-factorised differential equations beyond polylogarithms

open access: yesJournal of High Energy Physics, 2023
In this manuscript, we elaborate on a procedure to derive ϵ-factorised differential equations for multi-scale, multi-loop classes of Feynman integrals that evaluate to special functions beyond multiple polylogarithms.
Lennard Görges   +3 more
doaj   +1 more source

Explicit solutions of some equations and systems of mathematical physics

open access: yesAdvances in Difference Equations, 2020
This paper deals at first with a fully integrable evolution system of nonlinear partial differential equations (PDEs) which is a generalization of the classical Heisenberg ferromagnet equation.
Angela Slavova, Petar Popivanov
doaj   +1 more source

Elliptic symbol calculus: from elliptic polylogarithms to iterated integrals of Eisenstein series

open access: yesJournal of High Energy Physics, 2018
We present a generalization of the symbol calculus from ordinary multiple polylogarithms to their elliptic counterparts. Our formalism is based on a special case of a coaction on large classes of periods that is applied in particular to elliptic ...
Johannes Broedel   +4 more
doaj   +1 more source

Mechanics of infinitesimal gyroscopes on helicoid-catenoid deformation family of minimal surfaces [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
In this paper we explore the mechanics of infinitesimal gyroscopes (test bodies with internal degrees of freedom) moving on an arbitrary member of the helicoid-catenoid family of minimal surfaces.
Vasyl Kovalchuk   +2 more
doaj   +1 more source

Evaluating master integrals in non-factorizable corrections to t-channel single-top production at NNLO QCD

open access: yesJournal of High Energy Physics, 2023
We studied the two-loop non-factorizable Feynman diagrams for the t-channel single-top production process in quantum chromodynamics. We present a systematic computation of master integrals of the two-loop Feynman diagrams with one internal massive ...
Zihao Wu, Ming-Ming Long
doaj   +1 more source

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