The courses on https://aisafetyfundamentals.com/ are a common starting point for people!

I recomend AISafety.com and, if you are looking for introductions in video/ audio form, I like this selection (in part because I contributed to it). 

None of them are that technical though, and given that you mentioned your math knowledge, seems that's what you're interested on. 

In that case, the thing that you have to know is that it is said that the field is "pre-paradigmatic", so there's not any type of consensus about how is the best way to think about the problems and therefore how would even the potential solutions would look like or come to be. But there's work outside ML that is purely mathematical and related to agent foundations, and this introductory post that I've just found seems to explain all that stuff better than I could and would probably be more useful for you than the other links. 

Raemon, a moderator on Lesswrong, recommends Scott Alexander's Superintelligence FAQ.