Geodesic
Example of a Five-Sheeted Exotic Covering over $\mathbb C^2$
Matematičeskie zametki, Tome 71 (2002) no. 4, pp. 532-547 
G. V. Egorov. Example of a Five-Sheeted Exotic Covering over $\mathbb C^2$. Matematičeskie zametki, Tome 71 (2002) no. 4, pp. 532-547. http://geodesic.mathdoc.fr/item/MZM_2002_71_4_a4/
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     title = {Example of a {Five-Sheeted} {Exotic} {Covering} over $\mathbb C^2$},
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Voir la notice de l'article provenant de la source Math-Net.Ru

In the paper, an example of a five-sheeted covering which is a topological counterexample in the same sense as Vitushkin's example is proposed. Its topological characteristics such as generators of the two-dimensional homology and values of canonical classes are computed.

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