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The Geometry and Cohomology of Some Simple Shimura Varieties. (AM-151).
Authors: ---
ISBN: 1400837200 9781400837205 0691090920 9780691090924 Year: 2001 Publisher: Princeton Princeton University Press

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Abstract

This book aims first to prove the local Langlands conjecture for GLn over a p-adic field and, second, to identify the action of the decomposition group at a prime of bad reduction on the l-adic cohomology of the "simple" Shimura varieties. These two problems go hand in hand. The results represent a major advance in algebraic number theory, finally proving the conjecture first proposed in Langlands's 1969 Washington lecture as a non-abelian generalization of local class field theory. The local Langlands conjecture for GLn(K), where K is a p-adic field, asserts the existence of a correspondence, with certain formal properties, relating n-dimensional representations of the Galois group of K with the representation theory of the locally compact group GLn(K). This book constructs a candidate for such a local Langlands correspondence on the vanishing cycles attached to the bad reduction over the integer ring of K of a certain family of Shimura varieties. And it proves that this is roughly compatible with the global Galois correspondence realized on the cohomology of the same Shimura varieties. The local Langlands conjecture is obtained as a corollary. Certain techniques developed in this book should extend to more general Shimura varieties, providing new instances of the local Langlands conjecture. Moreover, the geometry of the special fibers is strictly analogous to that of Shimura curves and can be expected to have applications to a variety of questions in number theory.

Keywords

Mathematics --- Shimura varieties. --- MATHEMATICS / Number Theory. --- Varieties, Shimura --- Arithmetical algebraic geometry --- Math --- Science --- Abelian variety. --- Absolute value. --- Algebraic group. --- Algebraically closed field. --- Artinian. --- Automorphic form. --- Base change. --- Bijection. --- Canonical map. --- Codimension. --- Coefficient. --- Cohomology. --- Compactification (mathematics). --- Conjecture. --- Corollary. --- Dimension (vector space). --- Dimension. --- Direct limit. --- Division algebra. --- Eigenvalues and eigenvectors. --- Elliptic curve. --- Embedding. --- Equivalence class. --- Equivalence of categories. --- Existence theorem. --- Field of fractions. --- Finite field. --- Function field. --- Functor. --- Galois cohomology. --- Galois group. --- Generic point. --- Geometry. --- Hasse invariant. --- Infinitesimal character. --- Integer. --- Inverse system. --- Isomorphism class. --- Lie algebra. --- Local class field theory. --- Maximal torus. --- Modular curve. --- Moduli space. --- Monic polynomial. --- P-adic number. --- Prime number. --- Profinite group. --- Residue field. --- Ring of integers. --- Separable extension. --- Sheaf (mathematics). --- Shimura variety. --- Simple group. --- Special case. --- Spectral sequence. --- Square root. --- Subset. --- Tate module. --- Theorem. --- Transcendence degree. --- Unitary group. --- Valuative criterion. --- Variable (mathematics). --- Vector space. --- Weil group. --- Weil pairing. --- Zariski topology.

Triangulated categories
Author:
ISBN: 0691086869 0691086850 1400837219 1322063214 9781400837212 9780691086866 9780691086859 Year: 2001 Volume: 148 Publisher: Princeton, New Jersey : Princeton University Press,

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Abstract

The first two chapters of this book offer a modern, self-contained exposition of the elementary theory of triangulated categories and their "ients. The simple, elegant presentation of these known results makes these chapters eminently suitable as a text for graduate students. The remainder of the book is devoted to new research, providing, among other material, some remarkable improvements on Brown's classical representability theorem. In addition, the author introduces a class of triangulated categories"--the "well generated triangulated categories"--and studies their properties. This exercise is particularly worthwhile in that many examples of triangulated categories are well generated, and the book proves several powerful theorems for this broad class. These chapters will interest researchers in the fields of algebra, algebraic geometry, homotopy theory, and mathematical physics.

Keywords

Categories (Mathematics). --- Category theory. Homological algebra --- Categories (Mathematics) --- 512.58 --- 512.58 Categories. Category theory --- Categories. Category theory --- Category theory (Mathematics) --- Algebra, Homological --- Algebra, Universal --- Group theory --- Logic, Symbolic and mathematical --- Topology --- Functor theory --- Abelian category. --- Abelian group. --- Additive category. --- Adjoint functors. --- Adjoint. --- Adjunction (field theory). --- Associative property. --- Axiom. --- Basis (linear algebra). --- Bijection. --- Biproduct. --- Brown's representability theorem. --- Cardinal number. --- Cardinality. --- Category of abelian groups. --- Chain complex. --- Class (set theory). --- Cohomology. --- Computation. --- Coproduct. --- Corollary. --- Countable set. --- Counterexample. --- Derived category. --- Derived functor. --- Diagram (category theory). --- Direct limit. --- Direct sum. --- Discrete valuation ring. --- Duality (mathematics). --- Embedding. --- Equivalence class. --- Equivalence of categories. --- Exact functor. --- Exact sequence. --- Existence theorem. --- Existential quantification. --- Factorization. --- Finitely generated abelian group. --- Functor category. --- Functor. --- Grothendieck category. --- Grothendieck's Tôhoku paper. --- Group homomorphism. --- Homological algebra. --- Homotopy category of chain complexes. --- Homotopy category. --- Homotopy colimit. --- Homotopy. --- I0. --- Injective function. --- Injective object. --- Integer. --- Isomorph. --- Isomorphism class. --- Jack Morava. --- K-theory. --- Limit (category theory). --- Limit of a sequence. --- Limit ordinal. --- Linear map. --- Mapping cone (homological algebra). --- Mathematical induction. --- Maximal ideal. --- Module (mathematics). --- Monomorphism. --- Moore space. --- Morphism. --- N0. --- Natural transformation. --- Open set. --- Partially ordered set. --- Pierre Deligne. --- Prime number. --- Projective object. --- Proportionality (mathematics). --- Quotient category. --- Regular cardinal. --- Representable functor. --- Sheaf (mathematics). --- Special case. --- Spectral sequence. --- Subcategory. --- Subobject. --- Subsequence. --- Subset. --- Successor ordinal. --- Summation. --- Tautology (logic). --- Tensor product. --- Theorem. --- Theory. --- Topological group. --- Transfinite induction. --- Transfinite. --- Triangulated category. --- Universal property. --- Vector space. --- Vladimir Voevodsky. --- Yoneda lemma.

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