Sylvester Zhang (University of Minnesota)
This talk is about two classical results that are related to the Robinson schensted bijection. The first one, called GK correspondence, associates a partition to any finite posets, which can be used to construct the RS when the posets is the inversion poset of a permutation. The other is Viennot’s alternative construction of the RS using the shadow line construction (aka the matrix ball construction). I will discuss connection between the two and a geometric interpretation. This talk will be mostly expository.