2011/09/29 by Nicolò Sibilla, Sibilla, Nicolò · 1 citation
Mathematics · #14F05 #57M60 #Algebraic Geometry (math.AG) #FOS: Mathematics #Geometric Topology (math.GT) #Symplectic Geometry (math.SG) #math.AG #math.GT #math.SG #msc:14F05 #msc:57M60
paper · pdf · doi:10.48550/arxiv.1109.6615
12 pages, 2 figures. To appear in Proc. Amer. Math. Soc
arxiv created 2012/09/26 · arxiv updated 2012/09/27
Let Xn be a cycle of n projective lines, and \bTn a symplectic torus with n punctures. Using the theory of spherical twists introduced by Seidel and Thomas (2001), I will define an action of the pure mapping class group of \bTn on Db(Coh(Xn)). The motivation comes from homological mirror symmetry for degenerate elliptic curves, which was studied by the author with Treumann and Zaslow in arXiv:1103.2462 .