La génération automatique d'affiche a rencontré un problème:
This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6)
 %&-line parsing enabled.
entering extended mode
(/tmp/poster.tex
LaTeX2e <2005/12/01>
Babel  and hyphenation patterns for english, usenglishmax, dumylang, noh
yphenation, arabic, basque, bulgarian, coptic, welsh, czech, slovak, german, ng
erman, danish, esperanto, spanish, catalan, galician, estonian, farsi, finnish,
 french, greek, monogreek, ancientgreek, croatian, hungarian, interlingua, ibyc
us, indonesian, icelandic, italian, latin, mongolian, dutch, norsk, polish, por
tuguese, pinyin, romanian, russian, slovenian, uppersorbian, serbian, swedish, 
turkish, ukenglish, ukrainian, loaded.
(/usr/share/texmf/tex/latex/base/article.cls
Document Class: article 2005/09/16 v1.4f Standard LaTeX document class
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(/usr/share/texmf/tex/latex/base/inputenc.sty
(/usr/share/texmf/tex/latex/base/latin1.def))
(/usr/share/texmf/tex/generic/babel/babel.sty
(/usr/share/texmf/tex/generic/babel/frenchb.ldf
(/usr/share/texmf/tex/generic/babel/babel.def)
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* Local config file frenchb.cfg used
*
(/usr/share/texmf/tex/generic/babel/frenchb.cfg))) (./poster.aux)
(/usr/share/texmf/tex/latex/lm/t1lmr.fd)
Underfull \hbox (badness 10000) in paragraph at lines 43--45

! Missing $ inserted.
 
                $
l.50 ... from N=4 SYM, and discretely gauging a Z_
                                                  n subgroup of the global s...

? 
! Emergency stop.
 
                $
l.50 ... from N=4 SYM, and discretely gauging a Z_
                                                  n subgroup of the global s...

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Transcript written on poster.log.

Si vous en avez la possibilité, merci de bien vouloir corriger les informations erronées.