Geodesic
The Kuz'minov–Shvedov addition lemma in a quasi-abelian category
Sibirskij žurnal čistoj i prikladnoj matematiki, Tome 10 (2010) no. 3, pp. 63-75 Cet article a éte moissonné depuis la source Math-Net.Ru

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We study the question of the validity in a quasi-abelian category of some diagram lemma proved by Kuz'minov and Shvedov in 1994 for abelian groups and used by them as a tool for calculating the reduced $L_p$-cohomology of Riemannian manifolds.
Keywords: strict morphism, quasi-abelian category, homology, pullback. 
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Ya. A. Kopylov. The Kuz'minov–Shvedov addition lemma in a quasi-abelian category. Sibirskij žurnal čistoj i prikladnoj matematiki, Tome 10 (2010) no. 3, pp. 63-75. http://geodesic.mathdoc.fr/item/VNGU_2010_10_3_a4/

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