Results 21 to 30 of about 106 (55)

Discriminant coamoebas through homology [PDF]

open access: yes, 2012
Understanding the complement of the coamoeba of a (reduced) A-discriminant is one approach to studying the monodromy of solutions to the corresponding system of A-hypergeometric differential equations.
Passare, Mikael, Sottile, Frank
core   +5 more sources

$\texttt{MultiHypExp}$: A Mathematica Package For Expanding Multivariate Hypergeometric Functions In Terms Of Multiple Polylogarithms

open access: yes, 2023
We present the Mathematica package $\texttt{MultiHypExp}$ that allows for the expansion of multivariate hypergeometric functions (MHFs), especially those likely to appear as solutions of multi-loop, multi-scale Feynman integrals, in the dimensional ...
Bera, Souvik
core  

$\epsilon$-Expansion of Multivariable Hypergeometric Functions Appearing in Feynman Integral Calculus

open access: yes, 2022
We present a new methodology to perform the $\epsilon$-expansion of hypergeometric functions with linear $\epsilon$ dependent Pochhammer parameters in any number of variables.
Bera, Souvik
core  

Certain Quadruple Hypergeometric Series and their Integral Representations [PDF]

open access: yes, 2019
While investigating the Exton\u27s list of twenty one hyper-geometric functions of four variables and the Sharma\u27s and Parihar\u27s list of eighty three hyper-geometric functions of four variables, we noticed existence of new hyper-geometric series of
Bin-Saad, Maged, Younis, Jihad
core   +1 more source

An extension of basic Humbert hypergeometric functions

open access: yes, 2023
Given the growing quantity of proposals and works of basic hypergeometric functions in the scope of $q$-calculus, it is important to introduce a systematic classification of $q$-calculus.
Shehata, Ayman
core  

Certain Integral Representations for Hypergeometric Functions of Four Variables [PDF]

open access: yes, 2018
In the present work, we first introduce five new quadruple hypergeometric series and then we give integral representations of Euler type and Laplace type for these new hypergeometric series, which we denote ...
A. Younis, Jihad, Bin-Saad, Maged G.
core   +1 more source

$\texttt{AlgRel.wl}$: Algebraic Relations for the Product of Propagators in Feynman integrals

open access: yes, 2023
Motivated by the foundational work of Tarasov, who pointed out that the algebraic relations of the type considered here can lead to functional reduction of Feynman integrals.
Ananthanarayan, B.   +2 more
core  

Towards a change of variable formula for "hypergeometrization"

open access: yes, 2022
We are going to study properties of "hypergeometrization" -- an operator which act on analytic functions near the origin by inserting two Pochhammer symbols into their Taylor series. In essence, this operator maps elementary function into hypergeometric.
Blaschke, Petr
core  

The system of partial differential equations for the $C_{_0}$ function

open access: yes, 2019
We present an approach to analyze the scalar integrals of any Feynman diagrams in detail here. This method not only completely recovers some well-known results in the literature, but also produces some brand new results on the $C_{_0}$ function.
Chang, Chao-Hsi   +3 more
core   +1 more source

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