Errata for “ Iwahori – Hecke algebras and Schur algebras of the symmetric group ”

Errata for “ Iwahori – Hecke algebras and Schur algebras of the symmetric group ”
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发表时间:
2012
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C. Hapter
C. Hapter
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C. Hapter

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第17页,第2行:替换“...,人们可以用”来检查C∗λ∼=Homr(C,R)“,并且Homr(C,R)是具有(f·a)(X)=f(Ax)给出的A-作用的右A-模,对于f∈Homr(C,R),a∈A和x∈C∗λ)。第21页,第2.18页的证明:删除“That C∼=Homr(C,R)as right A-模”。因此,当D6=0时,DIMP⊗AC=[Homr(C,R):D]=dνλ,因为Homr(D,R)∼=D。第24页练习7(I)。删除“此外,显示所有∼的Cλ∈Λ=Homr(C,R)。第25页第3行:将括号注释改为(H(Sn)的四个Kazhdan-Lusztig基{Cx},{C‘x},{Dx}和{D’x}都是元胞的;然而,对于其他类型的Hecke代数则不是这样)。
Page 17, line -2: Replace “...and one can check that C∗λ ∼= HomR(C, R)” with “and HomR(C, R) is a right A– module with A–action given by (f · a)(x) = f(ax), for f ∈ HomR(C, R), a ∈ A and x ∈ C∗λ). Page 21, proof of 2.18: Delete “that C ∼= HomR(C , R) as right A–modules. Therefore” and after the displayed equation add “Hence, dimP⊗AC = [HomR(C , R) : D] = dνλ since HomR(D, R) ∼= D wheneverD 6= 0.” Page 24, exercise 7(i). Delete “In addition, show that C ∼= HomR(C, R) for all λ ∈ Λ. Page 25, line 3: change parenthetical remark to (the four Kazhdan–Lusztig bases {Cx}, {C ′ x}, {Dx} and {D′ x} of H (Sn) are all cellular; however, this is not true for Hecke algebras of other types).