A Generalized $\ddot{I}{‡}_n$-Function

Cheng Lyu, Mu Yuan, Dabin Zheng +2

The mapping $\ddot{I}{‡}_n$ from $\F_{2}^{n}$ to itself defined by $y=\ddot{I}{‡}_n(x)$ with $y_i=x_i+x_{i+2}(1+x_{i+1})$, where the indices are computed modulo $n$, has been widely studied for its…