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Homology of the Legendrian Contact DG-Algebra for the Rainbow Closure of Positive Braids

Student-Run Research Seminar

Speaker: Alex Simons, UC Davis
Location: 3106 MSB
Start time: Wed, May 8 2024, 12:10PM

Given a positive braid $\beta$, there is a natural way to take the closure and obtain a Legendrian knot. We prove that the associated Legendrian contact dg-algebra $\mathcal{A}_\beta$ is a resolution of the augmentation variety $H_0(\mathcal{A}_\beta)$. This allows us to compute derived invariants such as Hochschild homology, which has implications for Stein traces and derived algebraic geometry. 



Free pizzas:)