On Kirk's asymptotic contractions
On Kirk's asymptotic contractions
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关于柯克的渐近收缩
DOI:
10.1016/j.jmaa.2004.06.037
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发表时间:
2004
影响因子:
1.3
通讯作者:
I. Jóźwik
中科院分区:
文献类型:
--
作者:
J. Jachymski;I. Jóźwik
Recently Kirk introduced the notion of asymptotic contractions on a metric space and using ultrapower techniques he obtained an asymptotic version of the Boyd–Wong fixed point theorem. In this paper we extend this result and moreover, we give a constructive proof of it. Furthermore, we obtain a complete characterization of asymptotic contractions on a compact metric space. As a by-product we establish a separation theorem for upper semicontinuous functions satisfying some limit condition.
DOI:
10.1007/978-3-662-00547-7
发表时间:
1985
期刊:
--
影响因子:
--
作者:
K. Deimling
通讯作者:
K. Deimling