43XX 


Abstract harmonic analysis {For other analysis on topological and Lie groups, see 22Exx} 


4300 
General reference works (handbooks, dictionaries, bibliographies, etc.) 


4301 
Instructional exposition (textbooks, tutorial papers, etc.) 


4302 
Research exposition (monographs, survey articles) 


4303 
Historical (must also be assigned at least one classification number from Section 01) 


4304 
Explicit machine computation and programs (not the theory of computation or programming) 


4306 
Proceedings, conferences, collections, etc. 

43Axx 

Abstract harmonic analysis {For other analysis on topological and Lie groups, see 22Exx} 