Beiträge zur Algebra und Geometrie Contributions to Algebra and Geometry Vol. 49, No. 1, pp. 217225 (2008) 

The Geometric Structure of the Inverse Gamma DistributionTongzhu Li, Linyu Peng and Huafei SunDepartment of Mathematics, Beijing Institute of Technology, Beijing, 100081 China; email: litz@pku.org.cn email: bityuquansuperman@126.com email: sunhuafei@263.netAbstract: In the present paper we study the geometric structure of the inverse Gamma manifold from the viewpoint of information geometry and give the Kullback divergence, the Jdivergence and the geodesic equations. Also, some applications of the inverse Gamma distribution are provided. Keywords: the inverse Gamma distribution, Ricci curvature, Gaussian curvature, divergence Full text of the article:
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