Title of article :
Incidence Matrices of Directed Graphs of Groups and their up-down Pregroups
Author/Authors :
jassim, wadhah s. soran university - faculty of science - department of mathematics, Erbil, Iraq
Abstract :
The aim of this work is to give a definition of the incidence matrices of the directed graph of groups, construct an up-down pregroup of the incidence matrices of the directed graph of groups and then give an algorithm for the up-down pregroup of the directed graph of groups.
Keywords :
Incidence matrix of X , labeled graph , up , down pregroup , directed graph of groups and incidence matrix of a directed graph of groups
Journal title :
Sultan Qaboos University Journal for Science
Journal title :
Sultan Qaboos University Journal for Science
