Unipotent Packets for F4(nonsplit)/F4(split) G=F4(nonsplit) G^v=F4 nonsplit (K=B4) type: F4 sc s real form: 1 dual real form: 2 G: 1--2=>=3--4 G^v: 1--2=<=3--4 Special Special Orbit Cells Diagram #R A Dual Orbit Cells Diagram #R A^v 0 2 0000 1 1 F4 0 2222 1 1 A1~ 1 1000 2 2 F4(a1) 1 2022 1 2 A2~ 0 2000 1 1 A1+A1~ 2 0010 1 1