# Request for errata for Automorphic Forms on GL(2)

Hello everyone,

I'm currently proofreading Hervé Jacquet's and Robert Langlands's Automorphic Forms on GL(2) for future republication. I was wondering if some of you had noticed mistakes in it that we might correct.

Mathematical errors, misspellings, typos---any mistake, no matter how small, is welcome!

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Are you talking about the book by Jacquet and Langlands, or something else? –  user30035 Feb 15 '13 at 22:54
Yes, I've just corrected the question text. Thank you, wccanard! –  Anthony Pulido Feb 16 '13 at 23:52
My question may seem obvious, but did you ask Jacquet? One year he was teaching a course at Columbia on this book, and kept telling us half-jokingly how many errors he found in it. –  Joël Feb 17 '13 at 3:33
Hi Joël, not yet, but I will. Thanks! What is your full name, if you don't mind my asking? If it's OK, when I write to him I would like to mention that I learned of his comments from a former student of his. –  Anthony Pulido Feb 17 '13 at 16:50
Have you tried clicking on his user name? –  stankewicz Jun 28 '13 at 13:48

Lemma 6.1 (ii) on page 111: .... if and only if $n \geq |p-q|$

I am not so sure about the following, which might stem from an unconventional notation only, which I might have overlooked:

page 271 (vi) .. $\pi i$ instead of $\pi$ in the function field formula

page 272 (vii): ... but $\frac{\log q}{4 \pi} \int\limits_0^{2\pi i/\log q} \dots$

similar for (viii)

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I just saw this. Thank you! –  Anthony Pulido Sep 22 '13 at 12:54