Anton Petrunin
Math. Dept., PSU
University Park, PA 16802
Office: 333 McAllister Building
Phone number:1(814)8630931
PSU calendar
+
UP campus map
Texts
Mathematical competitions
Tournament of towns
--- an international mathematical competition for school students.
Saint-Petersburg olympiad in topology, October 1--31
Social networking
GitHub
MathOverflow
Research seminars
Politics
The cost of knowledge
In solidarity with Library Genesis and Sci-Hub