On 2013-03-13, Julio Rojas wrote:
> Dear all, I am working with Lyx 2.0.5.1 and MikTeX 2.9 on a Beamer
> presentation. In my Spanish formatted documents (article class, for
> example), \min and \max are produced upright and accented inside any
> math environment. On Beamer, these accents are not produced and the
> supposedly accented letters are overlapped by a "<<" symbol. I have
> tried changing the font in the menu, with no better results.
I suppose this is because Beamer uses fonts in T1 (instead of OT1) font
encoding for \mathrm. You may be able to override this with a suitable
OT1-encoded upright font. You may try
\SetMathAlphabet{\mathrm}{normal}{OT1}{zavm}{m}{n}
\SetMathAlphabet{\mathrm}{bold}{OT1}{zavm}{bx}{n}
(untested).
Alternatvely, try with \text{max} \text{min} (of course in Spanish), but
this requires extra work if you want limits below.
Günter
