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Classification of Pseudo-reductive Groups - Brian Conrad, Gopal Prasad

Classification of Pseudo-reductive Groups

Buch | Hardcover
256 Seiten
2015
Princeton University Press (Verlag)
978-0-691-16792-3 (ISBN)
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In the earlier monograph Pseudo-reductive Groups, Brian Conrad, Ofer Gabber, and Gopal Prasad explored the general structure of pseudo-reductive groups. In this new book, Classification of Pseudo-reductive Groups, Conrad and Prasad go further to study the classification over an arbitrary field. An isomorphism theorem proved here determines the automorphism schemes of these groups. The book also gives a Tits-Witt type classification of isotropic groups and displays a cohomological obstruction to the existence of pseudo-split forms. Constructions based on regular degenerate quadratic forms and new techniques with central extensions provide insight into new phenomena in characteristic 2, which also leads to simplifications of the earlier work. A generalized standard construction is shown to account for all possibilities up to mild central extensions. The results and methods developed in Classification of Pseudo-reductive Groups will interest mathematicians and graduate students who work with algebraic groups in number theory and algebraic geometry in positive characteristic.

Brian Conrad is professor of mathematics at Stanford University. Gopal Prasad is the Raoul Bott Professor of Mathematics at the University of Michigan.

*Frontmatter, pg. i*Contents, pg. v*1. Introduction, pg. 1*2. Preliminary notions, pg. 15*3. Field-theoretic and linear-algebraic invariants, pg. 28*4. Central extensions and groups locally of minimal type, pg. 57*5. Universal smooth k-tame central extension, pg. 66*6. Automorphisms, isomorphisms, and Tits classification, pg. 79*7. Constructions with regular degenerate quadratic forms, pg. 108*8. Constructions when PHI has a double bond, pg. 138*9. Generalization of the standard construction, pg. 171*A. Pseudo-isogenies, pg. 181*B. Clifford constructions, pg. 187*C. Pseudo-split and quasi-split forms, pg. 206*D. Basic exotic groups of type F4 of relative rank 2, pg. 230*Bibliography, pg. 239*Index, pg. 241

Reihe/Serie Annals of Mathematics Studies
Verlagsort New Jersey
Sprache englisch
Maße 152 x 235 mm
Gewicht 482 g
Themenwelt Mathematik / Informatik Mathematik Algebra
ISBN-10 0-691-16792-3 / 0691167923
ISBN-13 978-0-691-16792-3 / 9780691167923
Zustand Neuware
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