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G-2004-55

All Graphs in Which Each Pair of Distinct Vertices Has Exactly Two Common Neighbors

BibTeX reference

We find all connected graphs in which any two distinct vertices have exactly two common neighbors, thus solving a problem by B. Zelinka.

, 7 pages

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All Graphs in Which Each Pair of Distinct Vertices Has Exactly Two Common Neighbors
Mathematica Bohemica, 130, 101–105, 2005 BibTeX reference

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G-2004-55.pdf (100 KB)