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Arithmagons and geometrically invariant multiplicative integer partitions. (English) Zbl 1349.05288

Summary: In this article, we introduce a formal definition for integral arithmagons. Informally, an integral arithmagon is a polygonal figure with integer labeled vertices and edges in which, under a binary operation, adjacent vertices equal the included edge. By considering the group of automorphisms for the associated graph, we count the number of integral arithmagons whose exterior sum or product equals a fixed number.

MSC:

05C78 Graph labelling (graceful graphs, bandwidth, etc.)
05C30 Enumeration in graph theory
11P99 Additive number theory; partitions