On the usage of $2$-node lines in $n$-correct and $G{C}_n$ sets

Hakop Hakopian, Gagik Vardanyan, Navasard Vardanyan

An $n$-correct set $\mathcal{X}$ in the plane is a set of nodes admitting unique interpolation with bivariate polynomials of total degree at most $n$. A $k$-node line is a line pas…