/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/ is in yelp 3.10.2-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Arrows.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/BBBold.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/BoxDrawing.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/CombDiacritMarks.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Dingbats.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/EnclosedAlphanum.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/GeneralPunctuation.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/GeometricShapes.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/GreekAndCoptic.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Latin1Supplement.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/LatinExtendedA.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/LetterlikeSymbols.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Main.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MathOperators.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MiscMathSymbolsB.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MiscSymbols.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MiscTechnical.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/PUA.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/SpacingModLetters.js
/usr/share/yelp/mathjax/jax/output/HTML-CSS/fonts/TeX/AMS/Regular/SuppMathOperators.js