- Title Pages
- Dedication
- Epigraph
- Preface
-
Chapter One Buildings -
Chapter Two Quadratic Forms -
Chapter Three Moufang Polygons -
Chapter Four Moufang Quadrangles -
Chapter Five Linked Tori, I -
Chapter Six Linked Tori, II -
Chapter Seven Quadratic Forms over a ∈ Local Field -
Chapter Eight Quadratic Forms of Type E6, E7 and E8 -
Chapter Nine Quadratic Forms of Type F4 -
Chapter Ten Residues -
Chapter Eleven Unramified Quadrangles of Type E6, E7 and E8 -
Chapter Twelve Semi-ramified Quadrangles of Type E6, E7 and E8 -
Chapter Thirteen Ramified Quadrangles of Type E6, E7 and E8 -
Chapter Fourteen Quadrangles of Type E6, E7 and E8: Summary -
Chapter Fifteen Totally Wild Quadratic Forms of Type E7 -
Chapter Sixteen Existence -
Chapter Seventeen Quadrangles of Type F4 -
Chapter Eighteen The Other Bruhat-Tits Buildings -
Chapter Nineteen Coxeter Groups -
Chapter Twenty Tits Indices -
Chapter Twenty One Parallel Residues -
Chapter Twenty Two Fixed Point Buildings -
Chapter Twenty Three Subbuildings -
Chapter Twenty Four Moufang Structures -
Chapter Twenty Five Fixed Apartments -
Chapter Twenty Six The Standard Metric -
Chapter Twenty Seven Affine Fixed Point Buildings -
Chapter Twenty Eight Pseudo-Split Buildings -
Chapter Twenty Nine Linear Automorphisms -
Chapter Thirty Strictly Semi-linear Automorphisms -
Chapter Thirty One Galois Involutions -
Chapter Thirty Two Unramified Galois Involutions -
Chapter Thirty Three Residually Pseudo-Split Buildings -
Chapter Thirty Four Forms of Residually Pseudo-Split Buildings -
Chapter Thirty Five Orthogonal Buildings -
Chapter Thirty Six Indices for the Exceptional Bruhat-Tits Buildings - Bibliography
- Index
Linked Tori, I
Linked Tori, I
- Chapter:
- (p.41) Chapter Five Linked Tori, I
- Source:
- Descent in Buildings (AM-190)
- Author(s):
Bernhard M¨uhlherr
Holger P. Petersson
Richard M. Weiss
- Publisher:
- Princeton University Press
This chapter investigates the consequences of the assumption that one Moufang set is weakly isomorphic to another. It first introduces some well-known facts about involutions which are assembled in a few lemmas, including those dealing with an involutory set, a biquaternion division algebra, and a quaternion division algebra with a standard involution. It then presents a notation for a non-trivial anisotropic quadratic space and another for an involutory set are presented, along with assumptions for a pointed anisotropic quadratic space and the standard involution of a quaternion. It also makes a number of propositions regarding the standard involution of a quaternion and a biquaternion. Results about weak isomorphisms between Moufang sets arising from involutory sets are given.
Keywords: quaternion division algebra, Moufang set, weak isomorphism, involutory set, biquaternion division algebra, standard involution, anisotropic quadratic space
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- Title Pages
- Dedication
- Epigraph
- Preface
-
Chapter One Buildings -
Chapter Two Quadratic Forms -
Chapter Three Moufang Polygons -
Chapter Four Moufang Quadrangles -
Chapter Five Linked Tori, I -
Chapter Six Linked Tori, II -
Chapter Seven Quadratic Forms over a ∈ Local Field -
Chapter Eight Quadratic Forms of Type E6, E7 and E8 -
Chapter Nine Quadratic Forms of Type F4 -
Chapter Ten Residues -
Chapter Eleven Unramified Quadrangles of Type E6, E7 and E8 -
Chapter Twelve Semi-ramified Quadrangles of Type E6, E7 and E8 -
Chapter Thirteen Ramified Quadrangles of Type E6, E7 and E8 -
Chapter Fourteen Quadrangles of Type E6, E7 and E8: Summary -
Chapter Fifteen Totally Wild Quadratic Forms of Type E7 -
Chapter Sixteen Existence -
Chapter Seventeen Quadrangles of Type F4 -
Chapter Eighteen The Other Bruhat-Tits Buildings -
Chapter Nineteen Coxeter Groups -
Chapter Twenty Tits Indices -
Chapter Twenty One Parallel Residues -
Chapter Twenty Two Fixed Point Buildings -
Chapter Twenty Three Subbuildings -
Chapter Twenty Four Moufang Structures -
Chapter Twenty Five Fixed Apartments -
Chapter Twenty Six The Standard Metric -
Chapter Twenty Seven Affine Fixed Point Buildings -
Chapter Twenty Eight Pseudo-Split Buildings -
Chapter Twenty Nine Linear Automorphisms -
Chapter Thirty Strictly Semi-linear Automorphisms -
Chapter Thirty One Galois Involutions -
Chapter Thirty Two Unramified Galois Involutions -
Chapter Thirty Three Residually Pseudo-Split Buildings -
Chapter Thirty Four Forms of Residually Pseudo-Split Buildings -
Chapter Thirty Five Orthogonal Buildings -
Chapter Thirty Six Indices for the Exceptional Bruhat-Tits Buildings - Bibliography
- Index
