Decomposability of multivariable polynomials

Constantin-Nicolae Beli

Let $K$ be an algebrically closed field and let $n\ge 1$. If $P\in K[X]=K[X_1,\dots ,X_n]$, $P\ne 0$, we denote by $I(P)$ the support of $P$, which is the finite subset of $\math…