On soluble groups in which centralizers are finitely generated
On soluble groups of automorphisms of nonorientable Klein surfaces
We classify up to topological type nonorientable bordered Klein surfaces with maximal symmetry and soluble automorphism group provided its solubility degree does not exceed 4. Using this classification we show that a soluble group of automorphisms of a nonorientable Riemann surface of algebraic genus q ≥ 2 has at most 24(q-1) elements and that this bound is sharp for infinitely many values of q.
On solvable groups of exponent 4.
On some elementary properties of soluble groups of derived length 2.
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 .