FLINT3.7.0-dev

fmpz_mpoly_factor_lcc_kaltofen

Synopsis#include <flint/fmpz_mpoly_factor.h>
int fmpz_mpoly_factor_lcc_kaltofen(fmpz_mpoly_struct * divs, const fmpz_mpoly_factor_t lcAf_, const fmpz_mpoly_t A, slong r, const fmpz * alpha, slong * degs, const fmpz_poly_factor_t uf, const fmpz_mpoly_ctx_t ctx)source

Kaltofen's leading coefficient determination [Kal1985]. For each variable x_v, v \ge 1, the bivariate image of A in x_0, x_v (all other variables evaluated at \alpha) is factored with fmpz_bpoly_factor_ordered in the order of the univariate factors uf, and the leading coefficients of its factors show how the squarefree factors lcAf_ of the leading coefficient of A involving x_v are distributed; these are multiplied into divs. Returns 1 if the whole leading coefficient has been distributed, 0 if only part of it was, and -1 if the evaluation point is unusable.

References#

Cite this page

The FLINT team, “fmpz_mpoly_factor_lcc_kaltofen (fmpz_mpoly_factor.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/fmpz_mpoly_factor/fmpz_mpoly_factor_lcc_kaltofen.html (generated 2026-10-20).