UNIVERSAL MINIMAL FLOWS OF GENERALIZED WAŻEWSKI DENDRITES
UNIVERSAL MINIMAL FLOWS OF GENERALIZED WAŻEWSKI DENDRITES
复制标题
广义 WAŻEWSKI 树突的通用最小流
DOI:
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发表时间:
2017
期刊:
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通讯作者:
A. Kwiatkowska
中科院分区:
文献类型:
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作者:
A. Kwiatkowska
Abstract We study universal minimal flows of the homeomorphism groups of generalized Ważewski dendrites WP, $P subseteq left{ {3,4, ldots ,omega }
ight}$. If P is finite, we prove that the universal minimal flow of the homeomorphism group H (WP) is metrizable and we compute it explicitly. This answers a question of Duchesne. If P is infinite, we show that the universal minimal flow of H (WP) is not metrizable. This provides examples of topological groups which are Roelcke precompact and have a nonmetrizable universal minimal flow with a comeager orbit.