Tutte Colloquium - Yoav Len

Friday, February 16, 2018 3:30 pm - 3:30 pm EST (GMT -05:00)

Title: Tangent Lines and the equation 28 = 7 × 4

Speaker: Yoav Len
Affiliation: University of Waterloo
Room: MC 5501


I will discuss combinatorial aspects of tangent lines to curves and planar graphs. In algebraic geometry, every smooth plane curve has finitely many lines that are tangent to it at two separate points. My talk will revolve around a combinatorial analogue of this fact in tropical geometry, which hides rich combinatorics, and is related to other phenomena such as sandpile models and harmonic covers of graphs. I will not assume any knowledge in tropical or algebraic geometry.