\title[Local duality]{Local duality for representations of \\ finite group schemes} \author[Benson, Iyengar, Krause, and Pevtsova]{Dave Benson, Srikanth B. Iyengar, Henning Krause \\ and Julia Pevtsova} \address{Dave Benson \\ Institute of Mathematics\\ University of Aberdeen\\ King's College\\ Aberdeen AB24 3UE\\ Scotland U.K.} \address{Srikanth B. Iyengar\\ Department of Mathematics\\ University of Utah\\ Salt Lake City, UT 84112\\ U.S.A.} \address{Henning Krause\\ Fakult\"at f\"ur Mathematik\\ Universit\"at Bielefeld\\ 33501 Bielefeld\\ Germany.} \address{Julia Pevtsova\\ Department of Mathematics\\ University of Washington\\ Seattle, WA 98195\\ U.S.A.} \begin{document} \begin{abstract} A duality theorem for the stable module category of representations of a finite group scheme is proved. One of its consequences is an analogue of Serre duality, and the existence of Auslander-Reiten triangles for the $\fp$-local and $\fp$-torsion subcategories of the stable category, for each homogeneous prime ideal $\fp$ in the cohomology ring of the group scheme. \end{abstract} \keywords{Serre duality, local duality, finite group scheme, stable module category, Auslander-Reiten triangle} \subjclass[2010]{16G10 (primary); 20C20, 20G10 20J06, 18E30} \thanks{SBI was partly supported by NSF grant DMS-1503044 and JP was partly supported by NSF grants DMS-0953011 and DMS-1501146.}