====== 2023-02-13 ====== Vivek gave a talk, and talked about stuff during dinner. * What you can do with skein-on-brane, and higher genus open Gromov-Witten invariant. ===== skein, moduli of brane ===== $\gdef\lcal{\mathcal L}$ ==== skein ==== Let $\lcal \In \C$ be a $2 \dim_\R$ Legendrian in a 5 dimensional contact manifold. Let $L_\infty = \lcal \times \R \In \C \times \R$ be corresponding Lagrangian in the symplectization. One can compute curves bounded by $L_\infty$ and Reeb chords. The genus $0$ count is well-defined, but higher genus count is valued in skein. (not sure if this is true) Consider a capping. Liouville manifold $W$ of $C$. And **non-exact** Lagrangian $L$ of $\lcal$. Consider holomorphic curve, bounded by $L$. Maybe also with a Reeb chord at infinity. We have an action of skein algebra (on the Legendrian times R), on the skein module associated to the internal Lagrangian. ==== moduli ==== Consider the moduli of rank 1 local system on $\lcal$, $Loc(\lcal)$. Under certain assumption, we have $Loc(\lcal)$ is an algebraic symplectic space. For example, if $\lcal$ is a Legendrian torus, then its moduli space is $(\C^*)^2$. Let $L$ be a non-exact Lagrangian bounded $\lcal$. Then, restriction $Loc(L) \to Loc(\lcal)$ has image being a holomorphic Lagrangian. We can quantize this holomorphic Lagrangian to get a DQ module. ==== open GW invariant ==== skein algebra acting on the skein module. Certain operator annihilate the module, and that gives some equations. Then, the solution of certain equation is related to open GW invariant on $L$.