Approximating infinite graphs by normal trees
نویسندگان
چکیده
We show that every connected graph can be approximated by a normal tree, up to some arbitrarily small error phrased in terms of neighbourhoods around its ends. The existence such approximate trees has consequences both combinatorial and topological nature. On the side, we spanning tree as soon it locally at each end; i.e., only obstruction for having is an end which none tree. space ?(G), well spaces |G|=G??(G) naturally associated with G, are always paracompact. This gives unified short proofs number results Diestel, Sprüssel Polat, answers open question about metrizability Polat.
منابع مشابه
Approximating snowflake metrics by trees
Article history: Received 25 January 2015 Received in revised form 4 November 2015 Accepted 7 October 2016 Available online xxxx Communicated by Charles K. Chui MSC: 68W05 68W25 05C05 54E35
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ژورنال
عنوان ژورنال: Journal of Combinatorial Theory, Series B
سال: 2021
ISSN: ['0095-8956', '1096-0902']
DOI: https://doi.org/10.1016/j.jctb.2020.12.007