Topological aspect of Wulff shapes

Topological aspect of Wulff shapes
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伍尔夫形状的拓扑方面

DOI:
10.2969/jmsj/06610089
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发表时间:
2014
影响因子:
0.7
通讯作者:
Y. Sakemi
Y. Sakemi
中科院分区:
数学4区
文献类型:
--
作者:
Takashi Nishimura;Y. Sakemi

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。本文从拓扑的角度研究了Rn+1(nff0)中的WUL≥形。给出了WUL-ff形的极限和给定WUL-ff形的对偶WUL-ff形的拓扑特征。此外,我们还证明了如果给定的WULff形状的支撑函数是类C 1,则它永远不是多面体。文中还从踏板的角度给出了给定的WULff形状的几个特征。其中一个特征可以被认为是平衡晶体的数学方面和透视投影的数学方面之间的桥梁。
. In this paper we investigate Wulff shapes in R n +1 ( n ≥ 0) from the topological viewpoint. A topological characterization of the limit of Wulff shapes and the dual Wulff shape of the given Wulff shape are provided. Moreover, we show that the given Wulff shape is never a polytope if its support function is of class C 1 . Several characterizations of the given Wulff shape from the viewpoint of pedals are also provided. One of such characterizations may be regarded as a bridge between the mathematical aspect of crystals at equilibrium and the mathematical aspect of perspective projections.
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发表时间: 1990-03
期刊: --
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