Abstract
In this paper, we mainly discuss the constructions of some new K-g-frames which differ from the existing methods. Meanwhile, we use the relation between a positive operator and the frame operator of a K-g-frame to yield a new K-g-frame. We also obtain a necessary and sufficient condition to generate a new K-g-frame. In addition, we correct some recent results which were obtained by Huang and Leng. In the end, we give an equivalent characterization to construct some new tight K-g-frames by two given g-Bessel sequences. Our results generalize and improve some remarkable results.
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The authors cordially thank two anonymous referees for their helpful comments and suggestions to improve our manuscript.
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Communicated by See Keong Lee.
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The author is partly supported by the Natural Science Foundation of Fujian Province, China (Grant No. 2016J01014)
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Du, D., Zhu, YC. Constructions of K-g-Frames and Tight K-g-Frames in Hilbert Spaces. Bull. Malays. Math. Sci. Soc. 43, 4107–4122 (2020). https://doi.org/10.1007/s40840-020-00911-0
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DOI: https://doi.org/10.1007/s40840-020-00911-0