Circular s-choice parking functions: an exact closed formula via rotational symmetry

Hacène Belbachir, Asma Recioui, Abdelhakim Ait-Zai

We study a circular variant of the $s$-choice parking model: $n$ cars park on $m=n+1$ spots arranged on a circle, each car carrying an anchor and $s-1$ clockwise increments at leas…