Hello Math Community,
Thank you for taking the time to read my question. It is much appreciated. I'm curious as to which branch of mathematics would help develop our understanding of quantum theory ( quantum mechanics, spatial orientation of electrons ......). I am an undergrad graduating soon with a math degree and wishes to transition to advanced math. But before that I want to spend a considerable amount of time exposing myself to advanced math. When it comes to quantum mechanics my intuition tells me maybe topology or differential geometry are involved. Please help me understand which general topics I should consider thank you.