Displaying similar documents to “Matrix transformations and generators of analytic semigroups.”

Absolutely Summing Terraced Matrices

Ibrahim Almasri (2016)

Concrete Operators

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Let α > 0. By Cα we mean the terraced matrix defined by [...] if 1 ≤ k ≤ n and 0 if k > n. In this paper, we show that a necessary and sufficient condition for the induced operator on lp, to be p-summing, is α > 1; 1 ≤ p < ∞. When the more general terraced matrix B, defined by bnk = βn if 1 ≤ k ≤ n and 0 if k > n, is considered, the necessary and sufficient condition turns out to be [...] in the region 1/p + 1/q ≤ 1.

On matrix points in Čech--Stone compactifications of discrete spaces

Anatoly A. Gryzlov (1991)

Commentationes Mathematicae Universitatis Carolinae

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We prove the existence of ( 2 τ , τ ) -matrix points among uniform and regular points of Čech–Stone compactification of uncountable discrete spaces and discuss some properties of these points.