By means of some auxiliary lemmas, we obtain a characterization of compact subsets in the space of all fuzzy star-shaped numbers with metric for . The result further completes and develops the previous characterization of compact subsets given by Wu and Zhao in 2008.
"A Characterization for Compact Sets in the Space of Fuzzy Star-Shaped Numbers with Metric." Abstr. Appl. Anal. 2013 1 - 6, 2013. https://doi.org/10.1155/2013/627314