Frobenius Groups and Classical Maximal Orders

Frobenius Groups and Classical Maximal Orders PDF Author: Ron Brown
Publisher: American Mathematical Soc.
ISBN: 0821826670
Category : Mathematics
Languages : en
Pages : 125

Get Book Here

Book Description
Introduction Lemmas on truncated group rings Groups of real quaternions Proof of the classification theorem Frobenius complements with core index 1 Frobenius complements with core index 4 Frobenius complements with core index 12 Frobenius complements with core index 24 Frobenius complements with core index 60 Frobenius complements with core index 120 Counting Frobenius complements Maximal orders Isomorphism classes of Frobenius groups with Abelian Frobenius kernel Concrete constructions of Frobenius groups Counting Frobenius groups with Abelian Frobenius kernel Isomorphism invariants for Frobenius complements Schur indices and finite subgroups of division rings Bibliography

Frobenius Groups and Classical Maximal Orders

Frobenius Groups and Classical Maximal Orders PDF Author: Ron Brown
Publisher: American Mathematical Soc.
ISBN: 0821826670
Category : Mathematics
Languages : en
Pages : 125

Get Book Here

Book Description
Introduction Lemmas on truncated group rings Groups of real quaternions Proof of the classification theorem Frobenius complements with core index 1 Frobenius complements with core index 4 Frobenius complements with core index 12 Frobenius complements with core index 24 Frobenius complements with core index 60 Frobenius complements with core index 120 Counting Frobenius complements Maximal orders Isomorphism classes of Frobenius groups with Abelian Frobenius kernel Concrete constructions of Frobenius groups Counting Frobenius groups with Abelian Frobenius kernel Isomorphism invariants for Frobenius complements Schur indices and finite subgroups of division rings Bibliography

Structure Theorems of Unit Groups

Structure Theorems of Unit Groups PDF Author: Eric Jespers
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110411504
Category : Mathematics
Languages : en
Pages : 228

Get Book Here

Book Description
This two-volume graduate textbook gives a comprehensive, state-of-the-art account of describing large subgroups of the unit group of the integral group ring of a finite group and, more generally, of the unit group of an order in a finite dimensional semisimple rational algebra. Since the book is addressed to graduate students as well as young researchers, all required background on these diverse areas, both old and new, is included. Supporting problems illustrate the results and complete some of the proofs. Volume 1 contains all the details on describing generic constructions of units and the subgroup they generate. Volume 2 mainly is about structure theorems and geometric methods. Without being encyclopaedic, all main results and techniques used to achieve these results are included. Basic courses in group theory, ring theory and field theory are assumed as background.

Orders and Generic Constructions of Units

Orders and Generic Constructions of Units PDF Author: Eric Jespers
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110372940
Category : Mathematics
Languages : en
Pages : 460

Get Book Here

Book Description
This two-volume graduate textbook gives a comprehensive, state-of-the-art account of describing large subgroups of the unit group of the integral group ring of a finite group and, more generally, of the unit group of an order in a finite dimensional semisimple rational algebra. Since the book is addressed to graduate students as well as young researchers, all required background on these diverse areas, both old and new, is included. Supporting problems illustrate the results and complete some of the proofs. Volume 1 contains all the details on describing generic constructions of units and the subgroup they generate. Volume 2 mainly is about structure theorems and geometric methods. Without being encyclopaedic, all main results and techniques used to achieve these results are included. Basic courses in group theory, ring theory and field theory are assumed as background.

From Representation Theory to Homotopy Groups

From Representation Theory to Homotopy Groups PDF Author: Donald M. Davis
Publisher: American Mathematical Soc.
ISBN: 0821829874
Category : Mathematics
Languages : en
Pages : 65

Get Book Here

Book Description
A formula for the odd-primary v1-periodic homotopy groups of a finite H-space in terms of its K-theory and Adams operations has been obtained by Bousfield. This work applys this theorem to give explicit determinations of the v1-periodic homotopy groups of (E8,5) and (E8,3), thus completing the determination of all odd-primary v1-periodic homotopy groups of all compact simple Lie groups, a project suggested by Mimura in 1989.

Homotopy Theory of Diagrams

Homotopy Theory of Diagrams PDF Author: Wojciech Chachólski
Publisher: American Mathematical Soc.
ISBN: 0821827596
Category : Mathematics
Languages : en
Pages : 106

Get Book Here

Book Description
In this paper the authors develop homotopy theoretical methods for studying diagrams. In particular they explain how to construct homotopy colimits and limits in an arbitrary model category. The key concept introduced is that of a model approximation. A model approximation of a category $\mathcal{C}$ with a given class of weak equivalences is a model category $\mathcal{M}$ together with a pair of adjoint functors $\mathcal{M} \rightleftarrows \mathcal{C}$ which satisfy certain properties. The key result says that if $\mathcal{C}$ admits a model approximation then so does the functor category $Fun(I, \mathcal{C})$.

Spectral Decomposition of a Covering of $GL(r)$: the Borel case

Spectral Decomposition of a Covering of $GL(r)$: the Borel case PDF Author: Heng Sun
Publisher: American Mathematical Soc.
ISBN: 0821827758
Category : Mathematics
Languages : en
Pages : 79

Get Book Here

Book Description
Let $F$ be a number field and ${\bf A}$ the ring of adeles over $F$. Suppose $\overline{G({\bf A})}$ is a metaplectic cover of $G({\bf A})=GL(r, {\bf A})$ which is given by the $n$-th Hilbert symbol on ${\bf A}$

On the Foundations of Nonlinear Generalized Functions I and II

On the Foundations of Nonlinear Generalized Functions I and II PDF Author: Michael Grosser
Publisher: American Mathematical Soc.
ISBN: 0821827294
Category : Mathematics
Languages : en
Pages : 113

Get Book Here

Book Description
In part 1 of this title the authors construct a diffeomorphism invariant (Colombeau-type) differential algebra canonically containing the space of distributions in the sense of L. Schwartz. Employing differential calculus in infinite dimensional (convenient) vector spaces, previous attempts in this direction are unified and completed. Several classification results are achieved and applications to nonlinear differential equations involving singularities are given.

Tilings of the Plane, Hyperbolic Groups and Small Cancellation Conditions

Tilings of the Plane, Hyperbolic Groups and Small Cancellation Conditions PDF Author: Milé Krajčevski
Publisher: American Mathematical Soc.
ISBN: 0821827626
Category : Mathematics
Languages : en
Pages : 74

Get Book Here

Book Description
This book is intended for graduate students and research mathematicians interested in group theory and generalizations.

On the Connection between Weighted Norm Inequalities, Commutators and Real Interpolation

On the Connection between Weighted Norm Inequalities, Commutators and Real Interpolation PDF Author: Jesús Bastero
Publisher: American Mathematical Soc.
ISBN: 0821827340
Category : Mathematics
Languages : en
Pages : 94

Get Book Here

Book Description
Introduction Calderon weights Applications to real interpolation: reiteration and extrapolation Other classes of weights Extrapolation of weighted norm inequalities via extrapolation theory Applications to function spaces Commutators defined by the K-method Generalized commutators The quasi Banach case Applications to harmonic analysis BMO type spaces associated to Calderon weights Atomic decompositions and duality References.

Topological Invariants of the Complement to Arrangements of Rational Plane Curves

Topological Invariants of the Complement to Arrangements of Rational Plane Curves PDF Author: José Ignacio Cogolludo-Agustín
Publisher: American Mathematical Soc.
ISBN: 0821829424
Category : Mathematics
Languages : en
Pages : 97

Get Book Here

Book Description
The authors analyse two topological invariants of an embedding of an arrangement of rational plane curves in the projective complex plane, namely, the cohomology ring of the complement and the characteristic varieties. Their main result states that the cohomology ring of the complement to a rational arrangement is generated by logarithmic 1 and 2-forms and its structure depends on a finite number of invariants of the curve (its combinatorial type).