Connections
Mathematical Reviews
Entity
presentation of a group
Entity
mathematics
Entity
International Standard Book Number
Entity
digital object identifier
Entity
International Standard Serial Number
Entity
group
Entity
bibcode
Entity
unit circle
Entity
Q118398
Entity
homeomorphism
Entity
if and only if
Entity
subgroup
Entity
binary tree
Entity
Springer Science+Business Media
Entity
homotopy
Entity
simple group
Entity
unit interval
Entity
commutator
Entity
free group
Entity