In the present paper, we discuss some properties of K-frames in quaternionic Hilbert spaces such as the invertibility of the frame operator as well as the interchangeability of two Bessel sequences. Further, we propose several approaches to construct K-frames and we show that a T-frame can be constructed from a K-frame by the perturbation of a bounded linear operator T. Finally, we study the stability of K-frames under some perturbations.
机构:
Xinjiang Normal Univ, Sch Math Sci, Urumqi 830054, Xinjiang, Peoples R ChinaXinjiang Normal Univ, Sch Math Sci, Urumqi 830054, Xinjiang, Peoples R China
机构:
Shangrao Normal Univ, Coll Math & Comp Sci, Shangrao 334001, Jiangxi, Peoples R ChinaShangrao Normal Univ, Coll Math & Comp Sci, Shangrao 334001, Jiangxi, Peoples R China
机构:
Ferdowsi Univ Mashhad, Fac Math Sci, POB 1159, Mashhad 91775, Razavi Khorasan, IranFerdowsi Univ Mashhad, Fac Math Sci, POB 1159, Mashhad 91775, Razavi Khorasan, Iran
Mandipour, S.
Niknam, A.
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Ferdowsi Univ Mashhad, Fac Math Sci, POB 1159, Mashhad 91775, Razavi Khorasan, IranFerdowsi Univ Mashhad, Fac Math Sci, POB 1159, Mashhad 91775, Razavi Khorasan, Iran
Niknam, A.
Fashandi, M.
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Ferdowsi Univ Mashhad, Fac Math Sci, POB 1159, Mashhad 91775, Razavi Khorasan, IranFerdowsi Univ Mashhad, Fac Math Sci, POB 1159, Mashhad 91775, Razavi Khorasan, Iran