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arxiv: 0803.4126 · v1 · submitted 2008-03-28 · 🧮 math.GN · math.GT

Preserving Z-sets by Dranishnikov's resolution

classification 🧮 math.GN math.GT
keywords resolutiondimensionaldranishnikovsetsapplicationsbelingchigogidzecolon
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We prove that Dranishnikov's $k$-dimensional resolution $d_k\colon \mu^k\to Q$ is a UV$^{n-1}$-divider of Chigogidze's $k$-dimensional resolution $c_k$. This fact implies that $d_k^{-1}$ preserves $Z$-sets. A further development of the concept of UV$^{n-1}$-dividers permits us to find sufficient conditions for $d_k^{-1}(A)$ to be homeomorphic to the N\"{o}beling space $\nu^k$ or the universal pseudoboundary $\sigma^k$. We also obtain some other applications.

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