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It is shown that no graph contains a maximal 3-ring of bonds. Previous article in issue
In this paper we consider only finite graphs, and all graphs are assumed to be undirected unless specified otherwise. For the sake of convenience we.
Charles H. C. Little, Derek A. Holton: No graph has a maximal 3-ring of bonds. J. Comb. Theory B 38(2): 139-142 (1985).
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[1] C.H.C. Little and D.A. Holton. No graph has a maximal 3-ring of bonds. J. Comb. Theory Series B, 38:139–142, 1985.
Sep 13, 2009Little, D. A. Holton, “No graph has a maximal 3-ring of bonds”, J. Comb. Theory B38 (1985), 139–42. [13] S. Mac Lane, “A combinatorial�...
Apr 8, 2022How do you represent the aromatic rings in your graph? I assume that vertices are atoms and edges are bonds. Do you distinguish between single�...
A graph is planar if and only if it has no subgraph homeomorphic to K5 or K3,3. A subgraph Si(G) of graph G is a graph that has all its points in. V(G) and�...
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A ring represents the shortest path which comes back to a given node (At) from one of its nearest neighbors (N).
For the molecular graph in Fig. 2, four atoms have these invariants equal to 3, but four other atoms have the minimal ring size 3, but the maximal ring size is�...