Geodesic
The Greatest Proper Variety of $m$-Groups
Algebra i logika, Tome 42 (2003) no. 5, pp. 624-635.

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

It is proved that the variety $\mathcal N_m$ of all normal-valued $m$-groups is the greatest proper subvariety in the lattice of all $m$-varieties.
Keywords: variety, semiordered group
Mots-clés : $m$-group, group of monotonic transformations. 
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V. M. Kopytov; J. Rachůnek. The Greatest Proper Variety of $m$-Groups. Algebra i logika, Tome 42 (2003) no. 5, pp. 624-635. http://geodesic.mathdoc.fr/item/AL_2003_42_5_a4/

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