Around 1980, G. Mason announced the classification of a certain subclass of an important class of finite simple groups known as ""quasithin groups"". The classification of the finite simple groups depends upon a proof that there are no unexpected groups in this subclass. Unfortunately Mason neither completed nor published his work. In the Main Theorem of this two-part book (Volumes 111 and 112 in the AMS series, Mathematical Surveys and Monographs) the authors provide a proof of a stronger theorem classifying a larger class of groups, which is independent of Mason's arguments. In particular, this allows the authors to close this last remaining gap in the proof of the classification of all finite simple groups. An important corollary of the Main Theorem provides a bridge to the program of Gorenstein, Lyons, and Solomon (Volume 40 in the AMS series, Mathematical Surveys and Monographs) which seeks to give a new, simplified proof of the classification of the finite simple groups. Part I (the current volume) contains results which are used in the proof of the Main Theorem. Some of the results are known and fairly general, but their proofs are scattered throughout the literature; others are more specialized and are proved here for the first time. Part II of the work (Volume 112) contains the proof of the Main Theorem, and the proof of the corollary classifying quasithin groups of even type. The book is suitable for graduate students and researchers interested in the theory of finite groups.

The Classification of Quasithin Groups (Mathematical Surveys & Monographs, 111)

Science & Math

Michael Aschbacher

Mathematics

American Mathematical Society

Around 1980, G. Mason announced the classification of a certain subclass of an important class of finite simple groups known as ""quasithin groups"". The classification of the finite simple groups depends upon a proof that there are no unexpected groups in this subclass. Unfortunately Mason neither completed nor published his work. In the Main Theorem of this two-part book (Volumes 111 and 112 in the AMS series, Mathematical Surveys and Monographs) the authors provide a proof of a stronger theorem classifying a larger class of groups, which is independent of Mason's arguments. In particular, this allows the authors to close this last remaining gap in the proof of the classification of all finite simple groups. An important corollary of the Main Theorem provides a bridge to the program of Gorenstein, Lyons, and Solomon (Volume 40 in the AMS series, Mathematical Surveys and Monographs) which seeks to give a new, simplified proof of the classification of the finite simple groups. Part I (Volume 111) contains results which are used in the proof of the Main Theorem. Some of the results are known and fairly general, but their proofs are scattered throughout the literature; others are more specialized and are proved here for the first time. Part II of the work (the current volume) contains the proof of the Main Theorem, and the proof of the corollary classifying quasithin groups of even type. The book is suitable for graduate students and researchers interested in the theory of finite groups.

The Classification of Quasithin Groups (Mathematical Surveys & Monographs, 112)

The book provides an outline and modern overview of the classification of the finite simple groups. It primarily covers the "even case", where the main groups arising are Lie-type (matrix) groups over a field of characteristic 2. The book thus completes a project begun by Daniel Gorenstein's 1983 book, which outlined the classification of groups of "noncharacteristic 2 type". However, this book provides much more. Chapter 0 is a modern overview of the logical structure of the entire classification. Chapter 1 is a concise but complete outline of the "odd case" with updated references, while Chapter 2 sets the stage for the remainder of the book with a similar outline of the "even case". The remaining six chapters describe in detail the fundamental results whose union completes the proof of the classification theorem. Several important subsidiary results are also discussed. In addition, there is a comprehensive listing of the large number of papers referenced from the literature. Appendices provide a brief but valuable modern introduction to many key ideas and techniques of the proof. Some improved arguments are developed, along with indications of new approaches to the entire classification--such as the second and third generation projects--although there is no attempt to cover them comprehensively. The work should appeal to a broad range of mathematicians--from those who just want an overview of the main ideas of the classification, to those who want a reader's guide to help navigate some of the major papers, and to those who may wish to improve the existing proofs.

The Classification of Finite Simple Groups: Groups of Characteristic 2 Type (Mathematical Surveys and Monographs, 172)

Richard Lyons

Ronald Solomon

Stephen D. Smith

A collection of speeches from a one-day conference in memory of Olga Taussky-Todd held at Caltech in 1996. Additional contributors have added their articles to the volume and a review of Taussky-Todds professional work by H. Kisilevsky has also been included.

Olga Taussky-Todd, in Memoriam

Intl Pr of Boston Inc

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Books by Michael Aschbacher

See the best price to sell, buy, or rent books by Michael Aschbacher. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

The Classification of Quasithin Groups (Mathematical Surveys & Monographs, 111)

The Classification of Quasithin Groups (Mathematical Surveys & Monographs, 112)

The Classification of Finite Simple Groups: Groups of Characteristic 2 Type (Mathematical Surveys and Monographs, 172)

Olga Taussky-Todd, in Memoriam