Results 1 to 10 of about 121,182 (204)

On the monotonicity of the quotient of certain abelian integrals

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
We prove that the quotient of abelian integrals associated to an elliptic surface is bounded and strictly increasing by first determining the Picard-Fuchs equation satisfied by the abelian integrals and the Riccati equation satisfied by the quotient of ...
Min Ho Lee
doaj   +2 more sources

Two-loop renormalisation of gauge theories in 4D implicit regularisation and connections to dimensional methods

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We compute the two-loop $$\beta $$ β -function of scalar and spinorial quantum electrodynamics as well as pure Yang–Mills and quantum chromodynamics using the background field method in a fully quadridimensional setup using implicit regularization (IREG).
A. Cherchiglia   +4 more
doaj   +1 more source

The number of zeros of Abelian integrals for a perturbation of a hyper-elliptic Hamiltonian system with a nilpotent center and a cuspidal loop

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
In this paper we consider the number of isolated zeros of Abelian integrals associated to the perturbed system $\dot{x}=y,\ \dot{y}=-x^3(x-1)^2+\varepsilon (\alpha+\beta x+ \gamma x^3)y$, where $\varepsilon >0$ is small and $\alpha,\,\beta,\,\gamma \in ...
Ali Atabaigi
doaj   +1 more source

Two-loop superstring five-point amplitudes. Part I. Construction via chiral splitting and pure spinors

open access: yesJournal of High Energy Physics, 2020
The full two-loop amplitudes for five massless states in Type II and Heterotic superstrings are constructed in terms of convergent integrals over the genus-two moduli space of compact Riemann surfaces and integrals of Green functions and Abelian ...
Eric D’Hoker   +3 more
doaj   +1 more source

Abelian color cycles: A new approach to strong coupling expansion and dual representations for non-abelian lattice gauge theory

open access: yesNuclear Physics B, 2017
We propose a new approach to strong coupling series and dual representations for non-abelian lattice gauge theories using the SU(2) case as an example.
Christof Gattringer, Carlotta Marchis
doaj   +1 more source

Abelian Groups of Fractional Operators

open access: yesComputer Sciences & Mathematics Forum, 2022
Taking into count the large number of fractional operators that have been generated over the years, and considering that their number is unlikely to stop increasing at the time of writing this paper due to the recent boom of fractional calculus ...
Anthony Torres-Hernandez   +2 more
doaj   +1 more source

Elliptic modular graph forms. Part I. Identities and generating series

open access: yesJournal of High Energy Physics, 2021
Elliptic modular graph functions and forms (eMGFs) are defined for arbitrary graphs as natural generalizations of modular graph functions and forms obtained by including the character of an Abelian group in their Kronecker-Eisenstein series. The simplest
Eric D’Hoker   +2 more
doaj   +1 more source

The β-function of N $$ \mathcal{N} $$ = 1 supersymmetric gauge theories regularized by higher covariant derivatives as an integral of double total derivatives

open access: yesJournal of High Energy Physics, 2019
For a general N $$ \mathcal{N} $$ = 1 supersymmetric gauge theory regularized by higher covariant derivatives we prove in all orders that the β-function defined in terms of the bare couplings is given by integrals of double total derivatives with respect
K.V. Stepanyantz
doaj   +1 more source

One-loop matrix elements of effective superstring interactions: α′-expanding loop integrands

open access: yesJournal of High Energy Physics, 2021
In the low-energy effective action of string theories, non-abelian gauge interactions and supergravity are augmented by infinite towers of higher-mass-dimension operators.
Alex Edison   +4 more
doaj   +1 more source

Three-loop NSVZ relation for terms quartic in the Yukawa couplings with the higher covariant derivative regularization

open access: yesNuclear Physics B, 2017
We demonstrate that in non-Abelian N=1 supersymmetric gauge theories the NSVZ relation is valid for terms quartic in the Yukawa couplings independently of the subtraction scheme if the renormalization group functions are defined in terms of the bare ...
V.Yu. Shakhmanov, K.V. Stepanyantz
doaj   +1 more source

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