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      An Introduction to the Moebius Function

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          Abstract

          This is an introduction to the M\"obius function of a poset. The chief novelty is in the exposition. We show how order-preserving maps from one poset to another can be used to relate their M\"obius functions. We derive the basic results on the M\"obius function, applying them in particular to geometric lattices.

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          On the Addressing Problem for Loop Switching

          R L Graham, H. Pollak (1971)
          Article 0 comments Cited 81 times – based on 0 reviews     Review now
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            Publication date Created: 18 March 2018
            Article
            ArXiV ID: 1803.06664
            SO-VID: 42fd6237-24fa-4e79-a9bd-aaa0f6b3f36a
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            http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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            ACM classes 06A11
            Comments This is a slightly revised version of an old set of notes that have been available on my webpage for some time. The changes are not substantial. I've eliminated some old typos and introduced some ne ones (doubtless), and added one new section
            Categories math.CO

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