Possible Duplicate:
BibTeX loses capitals when creating .bbl file
I have a .bib file and I'm using JabRef to edit it.
Its content is
% This file was created with JabRef 2.7b.
% Encoding: UTF-8
@ARTICLE{adem,
author = {Alejandro Adem and William Browder},
title = {The free rank of symmetry of $(S^n)^k$},
journal = {Inventiones Mathematicae},
year = {1988},
volume = {92},
pages = {431--440}
}
but when I run bibtex and compile my file the title is strange since the math symbols were shown in lower case. Instead of The free rank of symmetry of $(S^n)^k$ it shows The free rank of symmetry of $(s^n)^k$ (note the small s).
I'm using \bibliographystyle{plain}.
Any help?