We discuss the notion of a power structure over a ring and the geometric description of the power structure over the Grothendieck ring of complex quasi-projective varieties and show some examples of applications to generating series of classes of configuration spaces (for example, nested Hilbert schemes of J. Cheah) and wreath product orbifolds.
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机译：我们讨论了环上的幂结构的概念以及复杂的拟射影变种的Grothendieck环上的幂结构的几何描述，并展示了一些用于生成一系列配置空间类的应用示例（例如，嵌套希尔伯特方案） J. Cheah的产品）和花环乘积。
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