Geodesic
Remarks on filtrations of the homology of real varieties
Documenta mathematica, Tome 17 (2012), pp. 641-661
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We demonstrate that a conjecture of Teh which relates the niveau filtration on Borel-Moore homology of real varieties and the images of generalized cycle maps from reduced Lawson homology is false. We show that the niveau filtration on reduced Lawson homology is trivial and construct an explicit class of examples for which Teh's conjecture fails by generalizing a result of Schülting. We compare different cycle maps and in particular we show that the Borel-Haeflinger cycle map naturally factors through the reduced Lawson homology cycle map.
DOI : 10.4171/dm/379
Classification : 14C25, 14F43 
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     author = {Mircea Voineagu and Jeremiah Heller},
     title = {Remarks on filtrations of the homology of real varieties},
     journal = {Documenta mathematica},
     pages = {641--661},
     year = {2012},
     volume = {17},
     doi = {10.4171/dm/379},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/379/}
}
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Mircea Voineagu; Jeremiah Heller. Remarks on filtrations of the homology of real varieties. Documenta mathematica, Tome 17 (2012), pp. 641-661. doi: 10.4171/dm/379

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