English

Global residues for sparse polynomial systems

Algebraic Geometry 2015-06-26 v2 Commutative Algebra

Abstract

We consider families of sparse Laurent polynomials f_1,...,f_n with a finite set of common zeroes Z_f in the complex algebraic n-torus. The global residue assigns to every Laurent polynomial g the sum of its Grothendieck residues over the set Z_f. We present a new symbolic algorithm for computing the global residue as a rational function of the coefficients of the f_i when the Newton polytopes of the f_i are full-dimensional. Our results have consequences in sparse polynomial interpolation and lattice point enumeration in Minkowski sums of polytopes.

Cite

@article{arxiv.math/0511684,
  title  = {Global residues for sparse polynomial systems},
  author = {Ivan Soprunov},
  journal= {arXiv preprint arXiv:math/0511684},
  year   = {2015}
}

Comments

Typos corrected, reference added, 13 pages, 5 figures. To appear in JPAA