Problem of the Week
Math Club
BUGCAT 2020
Zassenhaus Conference
Hilton Memorial Lecture
BingAWM
What is the minimum number of guards necessary to guard an art gallery so that every point is visible to some guard? I will discuss a special type of gallery called a rectilinear gallery. I will cover O'Rourke's proof that floor(n/4) guards are necessary and sufficient to cover a rectilinear gallery with n sides.