So here is the situation:
I am a Math student in a very well ranked French university, and I am going to finish my degree (i.e. 2-year MSc, after a 3-year BSc) in August. Therefore, it is time to think of the future: graduate school. In particular, I have been thinking to apply in the US, where many very good groups in the field I'm interested in are located. I have the highest possible GPA, followed advanced courses, research and teaching experience, potentially very good recommendation letters from well-know professors, received awards, and I'll be writing my MSc thesis at a well-known university on the East Coast.
However, I haven't been able to register for the GRE subject test soon enough due to personal reasons, and when I look at the US math graduate school, they almost all require the GRE subject test. Most of them even say that the applications without the GRE and Subject GRE will not even be reviewed, or will be very disadvantaged. The next session is in April, and the results must be submitted in December.
What is the reality of the graduation admissions system in the US? Should I try to apply anyway without the GRE Subject (i.e. are applications without GRE automatically rejected)? Should I wait one year to apply, until I can pass the GRE?