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What is the correct way to use \author and \thanks when I want to have multiple authors having common affiliations? For instance, using

\author{ABC\thanks{XYZ} \and DEF\thanks{UVW} \and GHI\thanks{XYZ}}

produces the following output

enter image description here

at the top of the page and the following output at the bottom of the page

enter image description here

I would like to get rid of XYZ repeating twice at the bottom of the page since authors ABC and GHI have same affiliation.

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up vote 35 down vote accepted

There may be more general ways of dealing with this, but I'm not sure how much investment should be put in with greater reward than a quick manual intervention.

Since \thanks is just a footnote with a differently formatted number, you can use \footnotemark[<num>] to fix it to affiliation <num>. So, using your example, GHI belongs to \footnotemark[1], which is the same as the affiliation of ABC:

enter image description here

\title{My title}
\author{ABC\thanks{XYZ} \and DEF\thanks{UVW} \and GHI\footnotemark[1]}

There's no need to provide an accompanying \footnotetext, since this is already provided by \thanks{XYZ} for ABC.

This minimal usage might not be optimal for accurate interaction with hyperref. However, this might not be needed.

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+1. Thanks! That really helped and I have it working fine now. The same works for adding multiple thanks as well using \footnotemark[1] \footnotemark[2] etc. I will wait for a few minutes before accepting an answer. – user1876 Jun 26 '12 at 19:52
How to do the same using amsart class? – Sigur Jul 25 '12 at 15:49
@Thiago: I would suggest asking a follow-up questions since the solution might entail more than can be commented on. Please post it as a fresh one using the "Ask Question" link. Please also include a link to this question to provide the background. – Werner Jul 26 '12 at 17:35

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