I need a
\wideparen symbol in a book prepared with
amsbook class. I know about a few packages providing this command but...
ymathdoes not work with current version of AMS classes
MnSymbol, mathabx, fourier- all substitute the default math font and this is not what I need (and what the publisher would allow). I need to keep the standard fonts for everything else, but only add this single symbol.
Any ideas how to do that ?