Curve counting invariants around the conifold point

Details Curve counting invariants around the conifold point Curve counting invariants around the conifold point

2010-07-27

arxiv.org/abs/1007.4641v1

Mathematics

Algebraic Geometry

53pages, 1figure

Scientific paper

In this paper, we investigate the space of certain weak stability conditions on the triangulated category of D0-D2-D6 bound states on a smooth projective Calabi-Yau 3-fold. In the case of a quintic 3-fold, the resulting space is interpreted as a universal covering space of an infinitesimal neighborhood of the conifold point in the stringy Kahler moduli space. We then construct the DT type invariants counting semistable objects in our triangulated category, which are new curve counting invariants on a Calabi-Yau 3-fold. We also investigate the wall-crossing formula of our invariants and their interplay with the Seidel-Thomas twist.

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