arXiv subjects
Publications and source records attributed to Shuguang Wang.
A simple trick invoking objective B-fields is employed to refine the concept of characteristic classes for twisted bundles. Then the objective stability and objective Einstein metrics are introduced and a new Hitchin-Kobayashi correspondence is established between them. As an application the SO(3)-instanton moduli space is proved to be always orientable.
We investigate Seiberg-Witten theory in the presence of real structures. Certain conditions are obtained so that integer valued real Seiberg-Witten invariants can be defined. In general we study properties of the real Seiberg-Witten projection map from the point of view of Fredholm map degrees.
We study geometry on real gerbes in the spirit of Cheeger-Simons theory. The concepts of adaptations and holonomy forms are introduced for flat connections on real gerbes. Their relations to complex gerbes with connections are presented, as well as results in loop and map spaces.
Let $F$ be a genus $g$ curve and $σ: F \to F$ a real structure with the maximal possible number of fixed circles. We study the real moduli space $\N' = \Fix (σ^{#})$ where $σ^{#}: \N \to \N$ is the induced real structure on the moduli space $\N$ of stable holomorphic bundles of rank 2 over $F$ with fixed non-trivial determinant. In particular, we calculate $H^* (\N',\mathbb Z)$ in the case of $g = 2$, generalizing Thaddeus' approach to computing $H^* (\N,\mathbb Z)$.