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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> Babeland 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 (/usr/share/texmf/tex/latex/base/size12.clo)) (/usr/share/texmf/tex/latex/base/inputenc.sty (/usr/share/texmf/tex/latex/umlaute/isolatin.def Package umlaute Warning: Thisinputencodinghasbeensuperseededbythe`latin1'encodi ng on input line 31. ) (/usr/share/texmf/tex/latex/base/latin1.def)) (/usr/share/texmf/tex/latex/graphics/graphicx.sty (/usr/share/texmf/tex/latex/graphics/keyval.sty) (/usr/share/texmf/tex/latex/graphics/graphics.sty (/usr/share/texmf/tex/latex/graphics/trig.sty) (/usr/share/texmf/tex/latex/config/graphics.cfg) (/usr/share/texmf/tex/latex/graphics/dvips.def))) (./poster.aux) ! Undefined control sequence. \mathbb l.34 {\bf\Large {The Linde problem on $\mathbb {R}^2 \times S^1 \times S^1$}} ? ! Emergency stop. \mathbb l.34 {\bf\Large {The Linde problem on $\mathbb {R}^2 \times S^1 \times S^1$}} No pages of output. Transcript written on poster.log.