Subfield codes of linear codes from perfect nonlinear functions and their duals

Dabin Zheng, Xiaoqiang Wang, Yayao Li +1

Let ${\mathbb{F}}_{p^m}$ be a finite field with $p^m$ elements, where $p$ is an odd prime and $m$ is a positive integer. Recently, \cite{Hengar} and \cite{Wang2020} determined the we…