Correction to "Formal degrees and adjoint gamma-factors'
Correction to "Formal degrees and adjoint gamma-factors'
复制标题
对“形式度数和伴随伽玛因子”的更正
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
T. Ikeda
中科院分区:
文献类型:
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作者:
K. Hiraga;Atsushi Ichino;T. Ikeda
The authors would like to thank Professor Gross for pointing out an error in Lemma 3.3 of [4]. Conjecture 1.4 of [4] does not hold for d(π) = d(π, μG/A,ψ) in the non-archimedean case. We need to modify the choice of the Haar measure μG/A,ψ. Following Gross and Gan [3], we take another Haar measure μG/A,ψ on G/A defined as follows. Let F be a non-archimedean local field of characteristic zero and let ψ be a nontrivial additive character of F . Let G be a connected reductive algebraic group over F and let A be the split component of the center of G. We may assume that A = {1}. Let G0 be the split form of G and choose an isomorphism η0 : G → G0 over F̄ , which may not be an inner twist. Let G0 be a Chevalley model of G0 over oF and choose a differential form ω0 of top degree on G0 over oF with non-zero reduction. Put ω = η∗ 0(ω0). Let μG,ψ denote the Haar measure on G determined by ω and the self-dual measure on F with respect to ψ. The Haar measure μG,ψ does not depend on the choice of η0 and ω0 (cf. [3, §5]). Conjecture 1.4 of [4] should be modified as follows.