Arbitrarily traceable Eulerian graph has the Hamiltonian square
Milan Sekanina, Anna Sekaninová (1982)
Archivum Mathematicum
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Milan Sekanina, Anna Sekaninová (1982)
Archivum Mathematicum
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Vojtech Bálint, Ondrej Vacek (2004)
Mathematica Bohemica
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The eccentricity of a vertex is defined as the distance to a farthest vertex from . The radius of a graph is defined as a . A graph is radius-edge-invariant if for every , radius-vertex-invariant if for every and radius-adding-invariant if for every . Such classes of graphs are studied in this paper.
Bohdan Zelinka (1986)
Czechoslovak Mathematical Journal
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