[The original version, posted Oct 8, 2007, has been updated Feb 22, 2008.] In this paper we prove an absolute Chow-Kuenneth decomposition for the motive of a universal family of abelian varieties over Kottwitz's Shimura surface.
In this paper we prove an absolute Chow-Kuenneth decomposition for the motive of a universal family of abelian varieties over Kottwitz's Shimura surface.