English

On Landau-Ginzburg systems, Quivers and Monodromy

Algebraic Geometry 2014-07-11 v4 Symplectic Geometry

Abstract

Let XX be a toric Fano manifold and denote by Crit(fX)(C)nCrit(f_X) \subset (\mathbb{C}^{\ast})^n the solution scheme of the corresponding Landau-Ginzburg system of equations. For toric Del-Pezzo surfaces and various toric Fano threefolds we define a map L:Crit(fX)Pic(X)L : Crit(f_X) \rightarrow Pic(X) such that EL(X):=L(Crit(fX))Pic(X)\mathcal{E}_L(X) : = L(Crit(f_X)) \subset Pic(X) is a full strongly exceptional collection of line bundles. We observe the existence of a natural monodromy map M:π1(L(X)RX,fX)Aut(Crit(fX)) M : \pi_1(L(X) \setminus R_X,f_X) \rightarrow Aut(Crit(f_X)) where L(X)L(X) is the space of all Laurent polynomials whose Newton polytope is equal to the Newton polytope of fXf_X, the Landau-Ginzburg potential of XX, and RXL(X)R_X \subset L(X) is the space of all elements whose corresponding solution scheme is reduced. We show that monodromies of Crit(fX)Crit(f_X) admit non-trivial relations to quiver representations of the exceptional collection EL(X)\mathcal{E}_L(X). We refer to this property as the MM-aligned property of the maps L:Crit(fX)Pic(X)L: Crit(f_X) \rightarrow Pic(X). We discuss possible applications of the existence of such MM-aligned exceptional maps to various aspects of mirror symmetry of toric Fano manifolds.

Keywords

Cite

@article{arxiv.1310.2436,
  title  = {On Landau-Ginzburg systems, Quivers and Monodromy},
  author = {Yochay Jerby},
  journal= {arXiv preprint arXiv:1310.2436},
  year   = {2014}
}