I am an international student and applying this year for pure maths PhD.
I have a few questions about the importance of taking graduate classes as undergrad. How important are they in getting admission to say, schools in the top 20-30?
I am just wondering, since I am taking grad classes during my senior year, the grades are certainly not available in the transcript yet when I am applying. How will the school know that I am taking grad courses? Will I be at a disadvantage compared to those who are taking it earlier, and have it on their transcript?