42 citations · 86 across the 12 of their papers we have counts for
12 papers
Elements of Topology, Differential Geometry and General Relativity for Physicists: A Mathematica-based Tutorial Approach
Balasubramanian Ananthanarayan, Souvik Bera, Subhasish Chakrabarty +4
This book is a self-contained, tutorial introduction to topology, differential geometry, and general relativity for students and researchers in physics. Its distinguishing feature…
HyperPrecision: A Mathematica package for High-Precision Numerical Evaluation of Multivariate Hypergeometric Functions
Sumit Banik, Souvik Bera
In this paper, we present HyperPrecision, a Mathematica package for high-precision numerical evaluation of general Horn-type multivariate hypergeometric functions and their Laurent…
One-loop amplitudes for and productions at the LHC through
Souvik Bera, Colomba Brancaccio, Dhimiter Canko +1
We present analytic expressions for the one-loop QCD helicity amplitudes contributing to top-quark pair production in association with a photon or a jet at the Large Hadron Collide…
Analytic continuations and numerical evaluation of the Appell , , Lauricella and Lauricella-Saran and their Application to Feynman Integrals
Souvik Bera, Tanay Pathak
We present our investigation of the study of two variable hypergeometric series, namely Appell and series, and obtain a comprehensive list of its analytic continuat…
- Automated rational approximant for bi-variate series
Souvik Bera, Tanay Pathak
The Chisholm rational approximant is a natural generalization to two variables of the well-known single variable Padé approximant, and has the advantage of reducing to the latter w…
: Algebraic Relations for the Product of Propagators in Feynman integrals
B. Ananthanarayan, Souvik Bera, Tanay Pathak
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, we su…
: A Mathematica Package For Expanding Multivariate Hypergeometric Functions In Terms Of Multiple Polylogarithms
Souvik Bera
We present the Mathematica package that allows for the expansion of multivariate hypergeometric functions (MHFs), especially those likely to appear as soluti…
FeynGKZ: a Mathematica package for solving Feynman integrals using GKZ hypergeometric systems
B. Ananthanarayan, Sumit Banik, Souvik Bera +1
In the Lee-Pomeransky representation, Feynman integrals can be identified as a subset of Euler-Mellin integrals, which are known to satisfy Gel'fand-Kapranov-Zelevinsky (GKZ) syste…
Analytic continuations of the Horn and functions
Souvik Bera, Tanay Pathak
The analytic continuations (ACs) of the double variable Horn and functions have been derived for the first time using the automated symbolic pack…
-Expansion of Multivariable Hypergeometric Functions Appearing in Feynman Integral Calculus
Souvik Bera
We present a new methodology, suitable for implementation on computer, to perform the -expansion of hypergeometric functions with linear dependent Pochhammer parameters in a…
Olsson.wl : a Mathematica package for the computation of linear transformations of multivariable hypergeometric functions
B. Ananthanarayan, Souvik Bera, S. Friot +1
We present the Olssonwl Mathematica package which aims to find linear transformations for some classes of multivariable hypergeometric functions. It is based on a well-known met…
On the evaluation of the Appell double hypergeometric function
B. Ananthanarayan, Souvik Bera, S. Friot +2
The transformation theory of the Appell double hypergeometric function is used to obtain a set of series representations of which provide an effi…