Abstract and Applied Analysis, cilt.2013, 2013 (SCI-Expanded)
We consider an additive group structure in digital images and introduce the commutator in digital images. Then we calculate the hypercrossed complex pairings which generates a normal subgroup in dimension 2 and in dimension 3 by using 8-adjacency and 26-adjacency. © 2013 Simge Öztunç et al.