Results 11 to 20 of about 166,026,527 (169)

Classes of Automorphisms of Free Groups of Infinite Rank [PDF]

open access: yesTransactions of the American Mathematical Society, 1973
This paper is concerned with finding classes of automorphisms of an infinitely generated free group F which can be generated by “elementary” Nielsen transformations. Two different notions of “elementary” Nielsen transformations are explored. One leads to a classification of the automorphisms generated by these transformations. The other notion leads to
Robert Cohen
openaire   +2 more sources

Finiteness properties of profinite groups [PDF]

open access: yes, 2010
PhDBroadly speaking, a finiteness property of groups is any generalisation of the property of having finite order. A large part of infinite group theory is concerned with finiteness properties and the relationships between them. Profinite groups are an
Colin David Reid, Reid, Colin David
core   +4 more sources

Graph products of groups [PDF]

open access: yes, 1990
In the 1970's Baudisch introduced the idea of the semifree group, that is, a group in which the only relators are commutators of generators. Baudisch was mainly concerned with subgroup problems, employing length arguments on the elements of these groups.
Green, Elisabeth Ruth
core   +7 more sources

Construction of a group of automorphisms for an infinite family of Garside groups [PDF]

open access: yes, 2014
The structure groups of non-degenerate symmetric set-theoretical solutions of the quantum Yang-Baxter equation provide an infinite family of Garside groups with many interesting properties. Given a non-degenerate symmetric solution, we construct for its structure group a group of automorphisms.
Chouraqui, Fabienne
core   +4 more sources

Algebraic reflexivity of isometry groups and automorphism groups of some operator structures [PDF]

open access: yes, 2013
We establish the algebraic re exivity of three isometry groups of operator structures: The group of all surjective isometries on the unitary group, the group of all surjective isometries on the set of all positive invertible operators equipped with ...
Botelho, Fernanda   +2 more
core   +2 more sources

On the automorphism groups of relatively free groups of infinite rank: a survey

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
The paper is intended to be a survey on some topics within the framework of automorphisms of a relatively free groups of infinite rank. We discuss such properties as tameness, primitivity, small index, Bergman property, and so on.
V.A. Roman’kov
doaj   +1 more source

Generalized spin Sutherland systems revisited

open access: yesNuclear Physics B, 2015
We present generalizations of the spin Sutherland systems obtained earlier by Blom and Langmann and by Polychronakos in two different ways: from SU(n) Yang–Mills theory on the cylinder and by constraining geodesic motion on the N-fold direct product of ...
L. Fehér, B.G. Pusztai
doaj   +1 more source

On the Root-class Residuality of HNN-extensions of Groups

open access: yesМоделирование и анализ информационных систем, 2014
Let K be an arbitrary root class of groups. This means that K contains at least one non-unit group, is closed under taking subgroups and direct products of a finite number of factors and satisfies the Gruenberg condition: if 1 ≤ Z ≤ Y ≤ X is a subnormal ...
E. A. Tumanova
doaj   +1 more source

Contributions to automorphisms of affine spaces [PDF]

open access: yes, 2013
We study aspects of the group G_n of polynomial automorphisms of the affine space A^n, the so-called affine Cremona group. Shafarevich introduced on G_n the structure of an ind-variety, an infinite-dimensional analogon to a (classical) variety.
Stampfli, Immanuel
core   +1 more source

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