I recently submitted an article to a math journal and got a response from a reviewer, with an attachment. In it, I have found some good advice that could improve my article tremendously.
I am a bit suspicious of its accuracy since it could resolve what I have been working with for some months in a few sentences.
But anyway, it was enough for me to ask the reviewer for coauthoring with me.
My question would be, does it often happen that an author asks a referee for coauthoring during the review process? Or could it even be possible?
I was given a month to revise my article, but the chance that I could revise successfully by myself seems to be fat.
I would be looking forward to any advice.
Thanks in advance.