Mostly mangling

An intermediate result (much stronger mixer). A frustrating search. When working on finding good mixers , I got really frustrated by ...

Invertible sums with shifted and/or rotated terms. Under what conditions is this function bijective? # 0 < r1 < r2 < w f(x...

0. Introduction For a long time I have been looking for "good" permutations on $[0, 2^{32})$ and $[0, 2^{64})$. The definitio...