Same Graph, Different Universe
יום א', 13/03/2016 - 14:00
Assaf Rinot (Bar-Ilan University)
Math building, 3rd floor seminar room (216/201)
May the same graph admit two different chromatic numbers in two different universes? how about infinitely many different values? and can this be achieved without changing the cardinals structure?
In this talk, we shall give various examples of graphs+universes that address the above questions.