Hi Y0da,I would bet that you have never read "Stochastic Calculus and Brownian Motion" by Shreve and Karatzas

..... if you had you wouldn t want to study more advanced books on stochastic calculus believe me!Regarding your question:In the UK: you have PhDs in Financial Maths in Cambridge, Oxford, Imperial, Warwick.In the US: Columbia, NYU, Chicago, Carnegie Mellon, Princeton, Stanford.In all of these (and undoubtedly many other unis), you ll find supervisors in maths departments who are doing financial maths.Good luck