Full paper in PDF:
$%A. G. Wasserman, Extending algebraic actions, Rev. Mat. Complut. 12 (1999), no. 2, 461–474.
%$
ABSTRACT
                                                                      
                                                                      
     There is a well-known procedure —induction— for extending an action of a
     subgroup 
 of a Lie group 
 on a topological space 
 to an action of
     
 on an associated space. Induction can also extend a smooth action of a
     subgroup 
 of a Lie group 
 on a manifold 
 to a smooth action of
     
 on an associated manifold. In this paper elementary methods are used to
     show that induction also works in the category of (nonsingular) real algebraic
     varieties and regular or entire maps if 
 is a compact Abelian Lie group.
     
1991 Mathematics Subject Classification: 58A07, 14L30, 14P05.