Geodesic
Groups with small cocentralizers
Algebra and discrete mathematics, no. 4 (2009), pp. 135-157.

Voir la notice de l'article provenant de la source Math-Net.Ru

Let $G$ be a group. If $S\subseteq G$ is a $G$–invariant subset of $G$, the factor-group $G/C_G(S)$ is called the cocentralizer of $S$ in $G$. In this survey-paper we review some results dealing with the influence of several cocentralizers on the structure of the group, a direction of research to which Leonid A. Kurdachenko was an active contributor, as well as many mathematicians all around the world.
Keywords: Cocentralizer in a group. Groups with prescribed conjugacy classes: $FC$–groups. $CC$–groups. $PC$–groups. $MC$–groups. 
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     author = {Javier Otal and Nikolaj N.Semko},
     title = {Groups with small cocentralizers},
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     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2009_4_a10/}
}
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Javier Otal; Nikolaj N.Semko. Groups with small cocentralizers. Algebra and discrete mathematics, no. 4 (2009), pp. 135-157. http://geodesic.mathdoc.fr/item/ADM_2009_4_a10/