一样的月光 - 徐佳莹

In this paper we consider all these nonassociative algebras defined by the action of invariant subspaces of the symmetric group $Σ_3$ on the associator of the considered laws.

This is the final paper in a series of four, concerning the surface $T \times T$ embedded in $\mathbb{CP}^8$, where $T$ is a the one dimensional torus. In this paper we compute the fundamental group of the Galois cover of the surface with respect to a generic projection onto $\mathbb{CP}^2$, and show that it is nilpotent of class 3. This is the first time such a group is presented as the fundamental group of a Galois cover of a surface.

随着建筑工程项目建设规模的不断扩大,测量工程逐渐成为社会各界关注的重点,这就需要引进更多先进技术,提升测量的精度,测量机器人是一种新兴的测量技术,在施工测量放样中发挥着重要作用[1]。基于此,文章主要研究了测量机器人的相关内容,并分析了测量机器人在施工测量放样的技术。