搜索结果: 1-6 共查到“geometric structures”相关记录6条 . 查询时间(0.234 秒)
In the late 1980’s Hitchin [51] and Simpson [71] discovered deep connections
between representations of fundamental groups of surfaces and algebraic geometry.
Geometric structures invariant to symmetries
symmetric spaces geometric structures Cartan geometries parabolic geometries homogeneous spaces extension functors
2012/7/11
We introduce and discuss (local) symmetries of geometric structures. These symmetries generalize the classical (locally) symmetric spaces to various other geometries. Our main tools are homogeneous Ca...
Automorphisms of geometric structures associated to Coxeter groups
Automorphisms geometric structures associated Coxeter groups
2012/3/1
In this paper, we consider the automorphism groups of the Cayley graph with respect to the Coxeter generators and the Davis complex of an arbitrary Coxeter group. We determine for which Coxeter groups...
Some (non-)elimination results for curves in geometric structures
Some (non-)elimination results curves geometric structures
2010/11/17
Chevaley-Tarski theorem insures that the projection of a constructible set of $\C ^n$ is also a constructible set. In this note we prove that the projection of a finite boolean combination of algebra...
鼹鼠爪趾几何结构量化特征分析（Quantitative Characteristic Features of Geometric Structures of Claws of Mole Rat）
仿生学 鼹鼠 爪趾 几何结构特征 量化分析
2010/5/5
土壤洞穴动物鼹鼠具有极高的挖掘效率，前足爪趾是其主要挖掘器官。分析了鼹鼠中重要种属——麝鼹（Scaptochirus moschatus）具有优良挖掘功能的前足爪趾的几何结构特征，重点分析了前足爪趾触土面的几何结构。利用体视显微镜观察分析前足爪趾的宏观几何结构，通过逆向工程技术获取爪趾三维数据点云进行特征曲线量化分析，求得前足爪趾特征轮廓线的曲率及二阶导数的变化规律：鼹鼠爪趾纵向轮廓曲率变化较小，...
Problems on geometric structures of projective embeddings
geometric structures projective embeddings
2010/10/29
This is a survey of our research on geometric structures of projective embeddings and includes some topics of our talks in several symposia during 1990-99. We clarify our main problem, which is to co...
