Geodesic
The cohomological birational invariants for 4-dimensional tori
Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, no. 2 (2011), pp. 26-37

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This paper is the first systematic step to obtain the birational classification of 4-dimensional tori. All the cohomological birational invariants of this tori are calculated. All the 4-dimensional tori with nontrivial invariants are described.
Mots-clés : algebraic torus, birational invariant, birational classification.
Keywords: cohomology, flasque resolution 
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     author = {Yu. Yu. Krutikov and S. Yu. Popov},
     title = {The cohomological birational invariants for 4-dimensional tori},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {26--37},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2011_2_a2/}
}
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Yu. Yu. Krutikov; S. Yu. Popov. The cohomological birational invariants for 4-dimensional tori. Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, no. 2 (2011), pp. 26-37. http://geodesic.mathdoc.fr/item/VSGU_2011_2_a2/