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arXiv 1306.5019math.SGmath.AG
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存在反辛对合时的Gromov-Witten圆盘不变量

Open Gromov-Witten disk invariants in the presence of an anti-symplectic involution

Penka Georgieva

摘要:

对于反辛对合具有非空不动轨迹的辛流形,我们从修饰圆盘映射的模空间出发,构造了实球映射的模空间模型,并给出了它的第一Stiefel-Whitney类的显式表达式.作为推论,我们得到了大量的例子,其中包括所有的奇维射影空间和许多完全相交,其中许多类型的实模空间是可定向的。对于这些流形,我们定义了开放的Gromov-Witten不变量,如果没有边界标记点,则不限制流形的维数或约束的类型。如果存在边界标记点,则在允许的边界约束的某些限制下定义不变量,即使在这些情况下模空间是不可定向的。

英文摘要:

For a symplectic manifold with an anti-symplectic involution having non-empty fixed locus, we construct a model of the moduli space of real sphere maps out of moduli spaces of decorated disk maps and give an explicit expression for its first Stiefel-Whitney class. As a corollary, we obtain a large number of examples, which include all odd-dimensional projective spaces and many complete intersections, for which many types of real moduli spaces are orientable. For these manifolds, we define open Gromov-Witten invariants with no restriction on the dimension of the manifolds or the type of the constraints if there are no boundary marked points. If there are boundary marked points, we define the invariants under some restrictions on the allowed boundary constraints, even though the moduli spaces are not orientable in these cases.

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