20XX 


Group theory and generalizations 

20Cxx 

Representation theory of groups [See also 19A22 (for representation rings and Burnside rings)] 


20C05 
Group rings of finite groups and their modules [See also 16S34] 


20C07 
Group rings of infinite groups and their modules [See also 16S34] 


20C08 
Hecke algebras and their representations 


20C10 
Integral representations of finite groups 


20C11 
$p$adic representations of finite groups 


20C12 
Integral representations of infinite groups 


20C15 
Ordinary representations and characters 


20C20 
Modular representations and characters 


20C25 
Projective representations and multipliers 


20C30 
Representations of finite symmetric groups 


20C32 
Representations of infinite symmetric groups 


20C33 
Representations of finite groups of Lie type 


20C34 
Representations of sporadic groups 


20C35 
Applications of group representations to physics 


20C40 
Computational methods 


20C99 
None of the above, but in this section 