Relaxed graceful labellings of trees.
Van Bussel, Frank (2002)
The Electronic Journal of Combinatorics [electronic only]
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Van Bussel, Frank (2002)
The Electronic Journal of Combinatorics [electronic only]
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Jackson, Bill, Sokal, Alan D. (2010)
The Electronic Journal of Combinatorics [electronic only]
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Droms, Carl, Servatius, Brigitte, Servatius, Herman (1995)
The Electronic Journal of Combinatorics [electronic only]
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Arge, Lars, Meyer, Ulrich, Toma, Laura, Zeh, Norbert (2003)
Journal of Graph Algorithms and Applications
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Bohdan Zelinka (1990)
Časopis pro pěstování matematiky
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Bohdan Zelinka (1992)
Archivum Mathematicum
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Edge shift distance between isomorphism classes of graphs, introduced by M. Johnson, is investigated in the case of trees and compared with other distances.
Markov, Minko (2007)
Serdica Journal of Computing
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This paper is part of a work in progress whose goal is to construct a fast, practical algorithm for the vertex separation (VS) of cactus graphs. We prove a theorem for cacti", a necessary and sufficient condition for the VS of a cactus graph being k. Further, we investigate the ensuing ramifications that prevent the construction of an algorithm based on that theorem only.