I am unsure there is any thread similar to this. Today in morning I was making a thread but I can not find it. Anyway, When I enrolled to CSE I was crazy about it but gradually I found myself in love of Math and I also found I am actually not good in CSE but in Math. I read in the best uni of my country. My university offers only following math courses 1. Calculus I, II, III 2. Discrete Math 3. Complex Analysis 4. Statistics 5. Differential equations 6. Linear Algebra 7. Basic Fourier and Laplace transformation 8. Mathematical Analysis for CS 9. Numerical Analysis 10. Graph theory I am planning to take all of them. But I am in such a state that I can not leave CSE. There is no opportunity for Math major in my university and its a technical university. I also must admit if I leave CS now I have no opportunity to enroll in Math in other university. So my question is: 1. Is there any university in Japan, UK, USA, Canada, Germany, France, Russia, Australia (since almost all top ranked universities for Math are situated in these countries) who will accept me as a student of Pure Math MS program or Pure Math PhD program? 2. If I have some research paper in Pure Math then can I apply to PhD in Math directly? 3. How to apply for PhD in Pure Math directly with research paper in Pure Math? Any advice is appreciable.