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While investigating geometric and combinatorial properties of some incidence structures from planar nearrings, Clay introduced the notion of circularity in [ 2 ]. An example of a circular planar nearring is the planar nearring of the complex plane C with a new multiplication defined by a, b={O, if a=O; (a/lal)b, if a~0, for all a, b ~ C. The incidence(More)
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