Browsing by Author "Sari, Siska Maya"

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    PEMBENTUKAN DIAGRAM SEMIGRUP
    (2013-07-19) Sari, Siska Maya; Gemawati, Sri; Pane, Rolan
    In this paper, we discuss the properties of the semigroups diagram formed by a semigroup presentation. The discussion begins by giving an illustration of the semigroup diagram from a semigroup presentation P  a , b ab  ba  . Then, a diagram, an atomic picture and a graph are formed by defining union operation on the diagram and addition operation on the graph. All the properties of the semigroups diagram are stated in the form of theorems, as a review of the semigroup diagram section in Diagram groups written by Guba, V and Sapir, M (1996).