My problem when using math in a beamer presentation: The space between a $f$ and the following questionmark is way too small (the glyphs intersect). When switching the code (MWE) to an article, the ...
Using Linux Biolinum as the sans font in beamer leads to layout problems for several themes. This seems to be related to a bug in the font, since it does not provide the right x-value, see here. I am ...