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Geometry of product spaces
Journal of Mathematical Analysis and Applications ( IF 1.2 ) Pub Date : 2021-05-03 , DOI: 10.1016/j.jmaa.2021.125285 M. Veena Sangeetha
中文翻译:
产品空间的几何
更新日期:2021-05-11
Journal of Mathematical Analysis and Applications ( IF 1.2 ) Pub Date : 2021-05-03 , DOI: 10.1016/j.jmaa.2021.125285 M. Veena Sangeetha
We study the inheritance of some geometric properties in a class of normed subspaces of products of normed spaces. This class includes the standard p-direct sums for . We obtain necessary conditions for a space of this class to be (1) n-uniformly rotund, (2) n-uniformly rotund relative to every n-dimensional subspace and (3) n-rotund for some positive integer n. In each of the three cases, we identify a subclass such that the same conditions are sufficient for a member to have the corresponding property.
中文翻译:
产品空间的几何
我们研究范空间积的一类范子空间中某些几何性质的继承。此类包括标准的p直接和。我们获得了此类空间的必要条件,该条件是(1)n-均匀圆形,(2)相对于每个n维子空间n-均匀圆形,(3)n-圆形对于某个正整数n。在这三种情况的每一种情况下,我们都将确定一个子类,以使相同的条件足以使成员具有相应的属性。