FEYN CALC SYMBOL

ApartFF


partial fractions loop integrals by decomposing them into simpler integrals that contain only linearly independent propagators. It uses FCApart as a backend and works and is suitable also for multiloop integrals. ApartFF effectively replaces the older function Apart2 and ScalarProductCancel which are now considered legacy.

DetailsDetails

  • ApartFF uses FCApart as the backend for partial fractioning. The latter implements an algorithm which is very much based on the work and code of F. Feng (arXiv:1204.2314) that seems    to employ a variety Leinartas's algorithm (see arXiv:1206.4740 for its description). Unlike Feng's    $Apart that works on general multivariate polynomials,                FCApart is tailored to work only with FeynCalc's FeynAmpDenominator and Pair objects, i.e. it is less general. For the original $Apart see https://github.com/F-Feng/APart

ExamplesExamplesopen allclose all

Basic Examples  (1)Basic Examples  (1)

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