Abstract
本文研究Steiner对称化在凸体上的充分条件。首先，我们根据Steiner对称化的性质，例如：保体积、保凸性、单调性、表面积减小等，构造一个凸体的变换 。其次，我们依据 满足的条件及Steiner对称化的概念，证明出 为凸体上的Steiner对称化，并且得到两个类似的推论。本文最后构造出了Steiner对称化的两个充分条件。 In this paper, we mainly study sufficient conditions for Steiner symmetrization on convex bodies. Firstly, according to the properties of Steiner symmetrization, such as volume-preserving, convexity-preserving, monotonicity, surface area reduction and so on, we constructed a transformation on convex bodies. Secondly, in accordance to Steiner symmetrization’s characterization and concept, we proved that is Steiner symmetrization and came up with two homologous corollaries. Finally, we obtained two sufficient conditions for Steiner symmetrization.
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