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An application of dominating families |
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| Authors: | Zhu Jianping |
| Affiliation: | (1) Institute of Mathematics, Sichuan University, Sichuan, China |
| Abstract: | In this paper, we prove thatχ(Seqξ)=d, when ξ is Frechet filter orP-point in ω* withx(ξ,ω*)≤d. |
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