Abstract In this paper, we consider the entire solutions of the system of Fermat type differential-difference equations with k -th order derivatives (0.1) w 1 ( k ) ( z ) 2 + p 1 w 2 ( z + c ) 2 = Q 1 ( z ) , w 2 ( k ) ( z ) 2 + p 2 w 1 ( z + c ) 2 = Q 2 (
Zhang et al. (2026) studied this question.