IJAC

2007

13 years 9 months ago
2007

IJAC

2007

13 years 9 months ago
2007

This is a survey of some problems in geometric group theory which I ﬁnd interesting. The problems are from diﬀerent areas of group theory. Each section is devoted to problems ...

IJAC

2007

13 years 9 months ago
2007

In this paper we consider Property (FA) for lattices in SU(2, 1). First, we prove that SU(2, 1; O3) has Property (FA). We then prove that the arithmetic lattices in SU(2, 1) of se...

IJAC

2007

13 years 9 months ago
2007

It is known that the problem of determining consistency of a ﬁnite system of equations in a free group or a free monoid is decidable, but the corresponding problem for systems o...

IJAC

2007

13 years 9 months ago
2007

We show that certain ﬁnite groups do not arise as the automorphism group of the square of a ﬁnite algebraic structure, nor as the automorphism group of a ﬁnite, 2-generated, ...

IJAC

2007

13 years 9 months ago
2007

IJAC

2007

13 years 9 months ago
2007

Abstract. Rotation distance quantiﬁes the diﬀerence in shape between two rooted binary trees of the same size by counting the minimum number of elementary changes needed to tra...

IJAC

2007

13 years 9 months ago
2007

IJAC

2007

13 years 9 months ago
2007

The Whitehead minimization problem consists in ﬁnding a minimum size element in the automorphic orbit of a word, a cyclic word or a ﬁnitely generated subgroup in a ﬁnite rank...

IJAC

2007

13 years 9 months ago
2007

A limit group is a ﬁnitely generated subgroup of a residually free group. We prove the result announced in the tittle. 2000 Mathematics Subject Classiﬁcation: 20E06, 20E08, 20...