On the Log-Concavity of the D'Arcais Polynomials for Normalised Functions

A sequence $(a_n{)}_{n\in \mathbb{N}}$ of non-negative real numbers is called log-concave at $n$ if $a_n^2\ge a_{n+1}{a}_{n-1}$. This property has been generalised in various ways to families of polynomials. We introduce a new variant and show that certain types of D’Arcais polynomials have the respective properties at certain points.