OutRing  Option allowing specification of the ring over which the output is defined
See also

evenExtModule  even part of Ext^*(M,k) over a complete intersection as module over CI operator ring

oddExtModule  odd part of Ext^*(M,k) over a complete intersection as module over CI operator ring
Functions with optional argument named OutRing :

"evenExtModule(...,OutRing=>...)"  see evenExtModule  even part of Ext^*(M,k) over a complete intersection as module over CI operator ring

"oddExtModule(...,OutRing=>...)"  see oddExtModule  odd part of Ext^*(M,k) over a complete intersection as module over CI operator ring