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الكلمات المفتاحية

COLOURING MAPS
SEMIDIRECT PRODUCT
freeness

الملخص

Abstract In this paper we will study the (G,H)- posets , to give a condition of freeness on colouring maps . Also we will look at the group – posets from the view point of the category theory . That is to give some results on semi-direct product poset groupoid.
https://doi.org/10.33899/edusj.2007.5790
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