Gheorghe Craciun, via a kind email:
We have started the “Madison Math Circle” for interested middle and high school students (please see more details below, or at https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle ), but we are having some trouble advertising it.
Prof. Steffen Lempp told me that you might be able to help us.
Thank you very much!
Best,
George