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Atomic subspaces for operators. (arXiv:1705.06042v1 [math.FA])
来源于:arXiv
This paper introduces the concept of atomic subspaces with respect to a
bounded linear operator. Atomic subspaces generalize fusion frames and this
generalization leads to the notion of $K$-fusion frames. Characterizations of
$K$-fusion frames are discussed. Various properties of $K$-fusion frames, for
example, direct sums, intersection, are studied. 查看全文>>