We give Macaulay2 algorithms for computing mixed multiplicities of ideals in
a polynomial ring. This enables us to find mixed volumes of lattice polytopes
and sectional Milnor numbers of a hypersurface with an isolated singularity.
The algorithms use the defining equations of the multi-Rees algebra of ideals.
We achieve this by generalizing a recent result of David A. Cox, Kuei-Nuan Lin,
and Gabriel Sosa in. One can also use a Macaulay2 command `reesIdeal' to
calculate the defining equations of the Rees algebra. We compare the
computation time of our scripts with the scripts already available.
@article{1902.07384,
author = {Goel, Kriti and Roy, Sudeshna and Verma, J. K.},
title = {Algorithms for computing mixed multiplicities, mixed volumes and
sectional Milnor numbers},
journal = {arXiv},
volume = {2019},
number = {0},
year = {2019},
language = {en},
url = {http://dml.mathdoc.fr/item/1902.07384}
}
Goel, Kriti; Roy, Sudeshna; Verma, J. K. Algorithms for computing mixed multiplicities, mixed volumes and
sectional Milnor numbers. arXiv, Tome 2019 (2019) no. 0, . http://gdmltest.u-ga.fr/item/1902.07384/