I have some (possibly) original results and advisor cannot help, how should I proceed? I am a master student in mathematics. I developed a new notion and did calculations for some examples. I believe it is original because I can't find it in literature. Now I want to publish my results, but I don't know if they are publishable or not. I have already asked my advisor but he said he doesn't have the ability to supervise me in that field. Should I just find an expert to talk with? The question is I don't have relations between any experts and me. Because of pandemic, it is also not a good idea to find them personally, so the only remaining idea will be cold email them. But it does not seems a good idea as well, so what should I do?
Cold emails are very common in this situation, and not at all a bad idea. Indeed, I know of many cold emails that have turned into coauthored papers.