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| Paper IPM / M / 11677 |
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| Abstract: | |
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In this paper, we discuss some recent results on graphs attached to rings.
In particular, we deal with comaximal graphs, unit graphs, and total
graphs. We then define the notion of cototal graph and, using this graph, we
characterize the rings which are additively generated by their
zero divisors. Finally, we glance at graphs attached to other algebraic
structures.
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