I am in a low ranked US math PhD program. I generally get along well with my advisor and like my research area (complex algebraic geometry). But the objective of my PhD program is to get low paid math teachers. We are overloaded with TA assignments.
So, I could get into a foreign math PhD program in South America. I am starting next July. Those foreign institutions generally offer full scholarship through the their Federal Government without any duties, free tuition + living expenses. No Duties Attached.
The thing is that I want to keep working in collaboration with my current US advisor, but he got mad and upset when I told him I am moving to another university.
How could I convince him to keep working with me? I mean there is internet and Skype. But I have not talked to him since the time I told him I am moving abroad.