On Some Finite 2-Groups of Deficiency Zero
On some presentations of completely regular semigroups.
On subgroups of GL (n, A) which are generated by commutators. II.
On symmetric words in nilpotent groups.
On symmetric words in nilpotent groups
On the affine Weyl group of type .
On the automorphism of a class of groups.
On the Burnside problem for groups of even exponent.
On the Burnside Problem for Periodic Groups.
On the Cantor-Bendixson rank of metabelian groups
We study the Cantor-Bendixson rank of metabelian and virtually metabelian groups in the space of marked groups, and in particular, we exhibit a sequence of 2-generated, finitely presented, virtually metabelian groups of Cantor-Bendixson rank .
On the character variety of group representations in SL (2, C) and PSL (2, C).
On the commutator lengths of certain classes of finitely presented groups.
On the complexity of braids
We define a measure of “complexity” of a braid which is natural with respect to both an algebraic and a geometric point of view. Algebraically, we modify the standard notion of the length of a braid by introducing generators , which are Garside-like half-twists involving strings through , and by counting powered generators as instead of simply . The geometrical complexity is some natural measure of the amount of distortion of the times punctured disk caused by a homeomorphism. Our main...
On the Conjugacy Problem for Knot Groups.
On the definability of the group by its spectrum.
On the group .
On the group S L 2 over orders of arithmetic type.
On the inverse limit of free nilpotent groups.
On the Kneser-Tits problem.
On the Nielsen Method in Free Products with Amalgamated Subgroups.