Apparently, this user prefers to keep an air of mystery about them.
7 does this group have a name? dec 3 '10
6 need references regarding the elementary theory of free semigroup and free abelian groups feb 12 '11
2 what conditions can one place on a finitely generated periodic semigroup that will ensure the semigroup is finite? aug 28 '10
1 post correspondence problem aug 12 '10