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Articles, 1 registres trobats
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10 p, 280.1 KB Iteration of functions and contractibility of acyclic 2-complexes / Leary, Ian J. (University of Southampton. School of Mathematical Sciences.)
We show that there can be no algorithm to decide whether infinite recursively described acyclic aspherical 2-complexes are contractible. We construct such a complex that is contractible if and only if the Collatz conjecture holds.
2021 - 10.5565/PUBLMAT6512110
Publicacions matemàtiques, Vol. 65 Núm. 1 (2021) , p. 309-318 (Articles)  

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