1990年,P.Diamond首次给出了由全体相对于原点的模糊星形数构成的空间在Lp度量下的紧集刻画。后来,Congxin Wu和Zhitao Zhao通过一个反例指出了P.Diamond的刻画是不正确的,并给出了一种正确的刻画。在这篇文章中,我们将进一步推广这个结论,得到了全体模糊星形数空间在Lp度量下的紧集刻画。
In 1990,P.Diamond gave firstly a characterization of compact sets in the space of fuzzy star-shaped numbers with respect to the origin with Lp metric for 1 ≤p〈∞.Later on,Congxin Wu and Zhitao Zhao pointed out that the characterization of Diamond was incorrect by a counterexample,and obtained a correct characterization for compact sets in spaces of fuzzy star-shaped numbers with respect to the origin.In this paper,we further devolpe the characterization and obtain the characterization of compact sets in spaces of fuzzy star-shaped numbers with Lp metric for 1 ≤p〈∞.