Local document is different from hosted one for math formulas

Question

I have my documents for read-the-docs in a github repository. Before pushing to the repo, I always run sphinx locally to produce the html. When I am satisfied I push my changes to the github repo and read-the-docs builds the documentation.

In a most recent change I have used a lot of math. My document looks fine produced locally, but the build by read-the-docs looks different especially for formatting the tabulators &.

Is there a way to produce the document in the same way as read-the-docs does it in order to avoid such surprises?

Thanks for any help.

Helmut