Choose which of the following math phd program

[QiSun]

Hi, I have received several math phd program offers including Wisconsin Madison, Georgia Tech, Purdue, Texas A&M. I am now interested in analysis and differential equations, having learnt some basic knowledge about viscous conservation laws and infinite dimensional Morse theory. Please help me about selecting a fit program for me. Any related information would be appreciated.

[Geococcyx]

In the interest of avoiding some possibly unnecessary wait time, this forum has largely morphed into a purely stat/biostat forum, so we don't have a lot of people who could reasonably help you choose a program.  We usually direct people to mathematicsgre.com -- I don't see a whole lot of specific threads for choosing between schools, but you may have some luck anyways, and they do appear to have a decision making thread that might prove fertile.  

[QiSun]

Thanks a lot. I will go to check that website.