Singular

D.15.8 lrcalc_lib

Library:

lrcalc.lib

Purpose:

An interface to the Littlewood-Richardson Calculator by Anders Buch

Author:

Oleksandr Iena, o.g.yena@gmail.com

Overview:

An interface to the documented functions of the Littlewood-Richardson Calculator by Anders Buch is implemented.
The library requires the Littlewood-Richardson Calculator by Anders Buch, which is available at http://math.rutgers.edu/~asbuch/lrcalc/

References:

[1] http://math.rutgers.edu/~asbuch/lrcalc/
http://math.rutgers.edu/~asbuch/lrcalc/lrcalc-1.2/README

Procedures:

D.15.8.1 LRinstall		installs the Littlewood-Richardson Calculator
D.15.8.2 LRcoef		Littlewood-Richardson coefficient c^z_{x, y}
D.15.8.3 LRskew		partitions y for which the Littlewood-Richardson coefficient c^z_{x,y} is non-zero together with that coefficient
D.15.8.4 LRmult		partitions z for which the Littlewood-Richardson coefficient c^z_{x,y} is non-zero together with that coefficient
D.15.8.5 LRcoprod		pairs of partitions x and y for which the Littlewood-Richardson coefficient c^z_{x,y} is non-zero together with that coefficient
D.15.8.6 LRschubmult		expantion of a product of two Schubert polynomials in the basis of Schubert polynomials