Arrangements of HyperplanesSpringer-Verlag, 1992 - 325页 |
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共有 18 个结果,这是第 1-3 个
第64页
... projection . Thus πxes = { 0 es if ns = X otherwise . The next result follows from Lemma 3.17 . Lemma 3.19 If F is a ... projection which annihilates J. Let K = K ( A ) = π ( J ) . Lemma 3.22 I = JOK . = Proof . The map 1 : E → J is the ...
... projection . Thus πxes = { 0 es if ns = X otherwise . The next result follows from Lemma 3.17 . Lemma 3.19 If F is a ... projection which annihilates J. Let K = K ( A ) = π ( J ) . Lemma 3.22 I = JOK . = Proof . The map 1 : E → J is the ...
第66页
... projection Tв of E ( B ) onto J ' ( B ) is the restriction to E ( B ) of the projection TA of E ( A ) onto J ' ( A ) . For simplicity we let a denote both E ( A ) and dE ( B ) and we let π denote both A and B. Thus K ( B ) = π ( Əл ( В ) ...
... projection Tв of E ( B ) onto J ' ( B ) is the restriction to E ( B ) of the projection TA of E ( A ) onto J ' ( A ) . For simplicity we let a denote both E ( A ) and dE ( B ) and we let π denote both A and B. Thus K ( B ) = π ( Əл ( В ) ...
第180页
... projection & : Ã3 I to V3 is a monomorphism . Call P = ( V3 ) the set of actual vertices of г. Note that 2 PP is a bijection . The projection is not necessarily a monomorphism on the interiors of the edges of 3. If E E E3 , let intE ...
... projection & : Ã3 I to V3 is a monomorphism . Call P = ( V3 ) the set of actual vertices of г. Note that 2 PP is a bijection . The projection is not necessarily a monomorphism on the interiors of the edges of 3. If E E E3 , let intE ...
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常见术语和短语
A₁ affine arrangement algebra A(A arrangement and let assume b₁ basic derivations basic invariants basis for D(A braid arrangement broken circuit central arrangement chain complex choose cohomology complement complex reflection groups complexification compute Corollary Coxeter group defining polynomial Definition deformation retraction degree denote dependent exact sequence Example exterior algebra exterior product fiber finite follows from Lemma follows from Proposition follows from Theorem formula free arrangement free with exp G-orbit graded K-module graph H₁ H₂ homogeneous homotopy type hyperplanes inductively free integers irreducible isomorphism K-algebra ker(x l-arrangement lattice Lemma Let G linear linearly independent matrix maximal element Möbius function modular elements module N¹(A nonempty Note Orbits Poincaré polynomial poset Proof prove real arrangement Recall reflection arrangement restriction result Saito's criterion 4.19 Section Shephard groups simplicial subset subspace supersolvable supersolvable arrangement Suppose surjective vertex w₁ write x-independent