Describing free groups, part II Π04 hardness and no Σ02 basis
Title Of Periodical
American Mathematical Society. Transactions
Author Statement
Charles McCoy, John Wallbaum
Frequency
Monthly
Publish State
Providence, RI:AMS،2012
E ISSN
0002-9947
Journal WebSite
http://www.ams.org/tran
Email Address
ams@ams.org
Year
2012
Month
November
Volume
364
Number
11
Page
5729-5734
Descriptors
Describing free groups , Bestvina and Feighn shows , Homomorphism , Finitely generated free group , Primitive element , Proper subgroup , Computable sequence of groups , Potential primitive element , Computable approximation