Abstract
Smaller model spaces, i.e spaces of a smaller number of orbitals n′ ≤ n or particles, N′ ≤ N, are represented by subgraphs embedded in a natural way in G2(2n: N), with (N′,2n′) vertex as their tail. Similarly one can imagine larger graphs in which G2(2n: N) is embedded. Description of the borders of a graph is simpler if we regard vertices and arcs of these larger graphs as ‘virtually present’: existing, but giving a null contribution to the real graph. The fixed-slope graphs, by virtue of this embedding property, admit a natural ordering of paths.
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© 1986 Springer-Verlag Berlin Heidelberg
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Duch, W. (1986). Labeling and ordering the paths. In: GRMS or Graphical Representation of Model Spaces. Lecture Notes in Chemistry, vol 42. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-93347-9_4
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DOI: https://doi.org/10.1007/978-3-642-93347-9_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-17169-0
Online ISBN: 978-3-642-93347-9
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