论文标题
信息几何形状中的G偶触电连接
G-dual teleparallel connections in Information Geometry
论文作者
论文摘要
给定一个真实的,有限的,平稳的Riemannian流形$(\ Mathcal {n},g)$ endowed,并带有电触电连接$ \ nabla $,由选择全球矢量基础上的全球基础上的vector Fields上的全球基础,$ \ \ \ \ \级{n>信息几何形状必须是由$ g $ - 级别级别向量字段确定的电触电连接,与确定$ \ nabla $的矢量字段的基础(几乎)双重偶尔。我们称任何这样的对$(\ nabla,\ nabla^{*})$ a $ g $ - dual teleparalleal对。 Then, after defining a covariant $(0,3)$ tensor $T$ uniquely determined by $(\mathcal{N},G,\nabla,\nabla^{*})$, we show that $T$ being symmetric in the first two entries is equivalent to $\nabla$ being torsion-free, that $T$ being symmetric in the first and third entry is equivalent to $ \ nabla^{*} $是免费的,在第二和第三个条目中,$ t $是对称的,相当于确定$ \ nabla $($ \ nabla^{*} $)的基础向量,由$ \ nabla^{*} $($ \ \ nabla $)并行。因此,$ g $ - 二型电触电对提供了通常在信息几何形状中通常使用的统计歧管的概念的概括,我们介绍了在古典信息和量子信息几何学上都产生的$ g $ - 双触电对的明确示例。
Given a real, finite-dimensional, smooth parallelizable Riemannian manifold $(\mathcal{N},G)$ endowed with a teleparallel connection $\nabla$ determined by a choice of a global basis of vector fields on $\mathcal{N}$, we show that the $G$-dual connection $\nabla^{*}$ of $\nabla$ in the sense of Information Geometry must be the teleparallel connection determined by the basis of $G$-gradient vector fields associated with a basis of differential one-forms which is (almost) dual to the basis of vector fields determining $\nabla$. We call any such pair $(\nabla,\nabla^{*})$ a $G$-dual teleparallel pair. Then, after defining a covariant $(0,3)$ tensor $T$ uniquely determined by $(\mathcal{N},G,\nabla,\nabla^{*})$, we show that $T$ being symmetric in the first two entries is equivalent to $\nabla$ being torsion-free, that $T$ being symmetric in the first and third entry is equivalent to $\nabla^{*}$ being torsion free, and that $T$ being symmetric in the second and third entries is equivalent to the basis vectors determining $\nabla$ ($\nabla^{*}$) being parallel-transported by $\nabla^{*}$ ($\nabla$). Therefore, $G$-dual teleparallel pairs provide a generalization of the notion of Statistical Manifolds usually employed in Information Geometry, and we present explicit examples of $G$-dual teleparallel pairs arising both in the context of both Classical and Quantum Information Geometry.