- 期刊
SUBMATRICES OF SUMMABILITY MATRICES
並列摘要
It is proved that a matrix that maps l^1 into l^1 can be obtained from any regular matrix by the deletion of rows. Similarly, a conservative matrix can be obtaire4 by deletion of rows from a matrix that preserves boundedness. These techniques are also used to derive a simple sufficient condition for a matrix to sum an unbounded sequence.
延伸閱讀
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