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References to 'amenable group'
1. amenable number by PrimeFan
2. circumferential angle is half the corresponding central angle by rm50
3. complex systems biology by bci1
4. congruence axioms by CWoo
5. constructing automata from regular languages by CWoo
6. deterministic Turing machine by Henry
7. group $C^*$-algebra by mhale
8. history of prime numbers by Mathprof
9. knot theory by CWoo
10. matrix representation of relation composition by Jon Awbrey
11. nuclear C*-algebra by bci1
12. pure subgroup by CWoo
13. strict by rspuzio