Speaker: Prof. Insong Choe (Konkuk University)
Time: 9h15, Friday, September 10, 2021
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https://us02web.zoom.us/j/82772292046?pwd=Yyt5ZkpXa1AyNnlnbnk5VTdxVGkvZz09
Meeting ID: 827 7229 2046 Passcode: 830392
Abstract: A Hecke curve is a rational curve on the moduli space $SU_C(r,d)$ of vector bundles over an algebraic curve, constructed by using the Hecke transformation. The Hecke curves played an important role in Jun-Muk Hwang's works on the geometry of $SU_C(r,d)$. Later, Xiaotao Sun proved that they have the minimal degree among the rational curves passing through a general point. We construct rational curves on the moduli spaces of symplectic and orthogonal bundles by using symplecitic/orthogonal version of Hecke transformation. It turns out that the symplectic Hecke curves are special kind of Hecke curves, while the orthogonal Hecke curves have degree $2d$, where $d$ is the degree of Hecke curves. Also we show that those curves have the minimal degree among the rational curves passing through a general point. This is a joint work with Kiryong Chung and Sanghyeon Lee. |