Geodesic
Homomorphisms close to regular and their applications
Fundamentalʹnaâ i prikladnaâ matematika, Tome 16 (2010) no. 7, pp. 3-38.

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This paper contains new and known results on homomorphisms, which are close to regular. The main results are presented with proofs. 
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A. N. Abyzov; A. A. Tuganbaev. Homomorphisms close to regular and their applications. Fundamentalʹnaâ i prikladnaâ matematika, Tome 16 (2010) no. 7, pp. 3-38. http://geodesic.mathdoc.fr/item/FPM_2010_16_7_a0/

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