Correct typo in paper title? One of my published papers has a typo in the title. I have found errors of various kinds in my other papers (who hasn't) and never cared to make corrections, but I often refer people to this particular paper and the fact that there is a typo in the title feels somewhat akward to me. Should I ask the publisher to change it? I think they might update their database and the paper webpage on their site, but I doubt they would change the pdf and they will obviously not change the printed version. Hence there would be some discrepancy.

Update: my request was denied.
You could ask, although it's likely the publisher will be reluctant to make changes, for the reasons you mentioned: it creates a discrepancy between the different versions of the paper.

I'd honestly not worry too much about it. Yes the typo in such a visible place is embarrassing, but hardly unique. It doesn't threaten the veracity of the paper's results, and readers learn to ignore typos (lots of papers have typos!). If there ever is a "second edition" of the paper then yeah, correct it, but otherwise it's just not worth the effort.