Hi! I’m Roger!
I’ve used many handles online, but they typically follow the regex /kirito[\._]?feng/.

I am a math PhD candidate at the University of Houston, supervised by Dr. Yingying Wu.

When not doing homework, you might find me working on the DMOJ: Modern Online Judge, Canada’s largest online judge for computer science contests, as either an administrator or a developer.

Finally, my LaTeX typesetting skills, in the form of my résumé, are showcased here.