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Nov 18, 2018 at 12:08 comment added Grisha Papayanov arxiv.org/abs/math/0507287 and arxiv.org/abs/math/0601312 might be exactly what you're interested in, as well as the subsequent works of the authors; these two papers give an explicit $L_{\infty}$-structure on the cone of Kodaira-Spencer dg-Lie algebras for two manifolds and describe the corresponding Maurer-Cartan functor
S Sep 12, 2018 at 12:17 history bounty ended Mohan Swaminathan
S Sep 12, 2018 at 12:17 history notice removed Mohan Swaminathan
Sep 12, 2018 at 12:17 vote accept Mohan Swaminathan
Sep 7, 2018 at 21:21 comment added Phil Tosteson Kapranov shows in "Rozansky–Witten invariants via Atiyah classes" that the Atiyah class makes $T_X[-1]$ into a lie algebra in $D(X)$. The relationship of this Lie algebra to deformation theory is discussed here: mathoverflow.net/questions/143269. Unfortunately, I don't have enough expertise to give a detailed answer.
Sep 7, 2018 at 19:49 comment added Mohan Swaminathan I'm not familiar with the Kapranov bracket. Could you point me to a reference where it is defined? Also, it would be nice if you can expand this comment into a more detailed answer.
Sep 7, 2018 at 16:24 comment added Phil Tosteson You can see that part of this is right by considering the fiber sequence of formal moduli problems which forgets the map to $f$. This corresponds to a short exact sequence of $dg$ lie algebras, where the quotient governs deformations of $C$ and the sub governs deformations of maps to $X$ where the curve is fixed.
Sep 7, 2018 at 16:22 comment added Phil Tosteson A natural guess is that $\Omega^{0}(f^* T_X) \otimes \Omega^{0} (f^* T_X) \to \Omega^{0,1}(f^*T_X)$ is given by pulling back a representative for the Kapranov bracket, while $\Omega^{0,1}(T_C) \otimes \Omega^0(T_X) \to \Omega^{0,1}(T_X)$ is induced by the Lie bracket of vector fields and the rest of the degree 1 map is zero.
Sep 7, 2018 at 8:21 answer added Jon Pridham timeline score: 10
S Sep 6, 2018 at 23:45 history bounty started Mohan Swaminathan
S Sep 6, 2018 at 23:45 history notice added Mohan Swaminathan Canonical answer required
Sep 4, 2018 at 23:11 history asked Mohan Swaminathan CC BY-SA 4.0