Abstract
Let k be an integer. A 2-edge connected graph G is said to be goal-minimally k-elongated (k-GME) if for every edge uv ∈ E(G) the inequality d G−uv (x, y) > k holds if and only if {u, v} = {x, y}. In particular, if the integer k is equal to the diameter of graph G, we get the goal-minimally k-diametric (k-GMD) graphs. In this paper we construct some infinite families of GME graphs and explore k-GME and k-GMD properties of cages.
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ANUNCHUEN, N.— CACCETTA, L.: On strongly edge-critical graphs of given diameter, Australas. J. Combin. 8 (1993), 99–122.
BRINKMANN, G.— MCKAY, B. D.— SAAGER, C.: The smallest cubic graphs of girth nine, Combin. Probab. Comput. 5 (1995), 1–13.
CACCETTA, L.— HÄGGKVIST, R.: On diameter critical graphs, Discrete Math. 28 (1979), 223–229.
CHARTRAND, G.— LESNIAK, L.: Graphs & Digraphs (4th ed.), Chapman & Hall/CRC, Boca Raton, 2005.
DE CLERCK, F.— THAS, J. A.— VAN MALDEGHEM, H.: Generalized Polygons and Semipartial Geometries. Book of EIDMA Minicourse, Eindhoven, April 1996.
DIESTEL, R.: Graph Theory, Springer-Verlag, Berlin, 2005.
GLIVIAK, F.— PLESNÍK, J.: Some examples of goal-minimally 3-diametric graphs, J. Appl. Math. Stat. Inform. 1 (2005), 87–94.
EXOO, G.: http://ginger.indstate.edu/ge/CAGES (October 2006).
JØRGENSEN, L. K.: Girth 5 graphs from relative difference sets, Discrete Math. 293 (2005), 177–184.
KYŠ, P.: Diameter strongly critical graphs, Acta Math. Univ. Comenian. 37 (1980), 71–83.
O’KEEFE, M.— WONG, P. K.: A smallest graph of girth 5 and valency 6, J. Combin. Theory Ser. B 26 (1979), 145–149.
PLESNÍK, J.: Critical graphs of given diameter, Acta Fac. Rerum Natur. Univ. Comenian. Math. 30 (1975), 71–93.
PLESNÍK, J.: Examples of goal-minimally k-diametric graphs for some small values of k, Australas. J. Combin. 41 (2008), 93–105.
PLESNÍK, J.: Personal communication (October 2006).
ROYLE, G.: http://www.csse.uwa.edu.au gordon/cages/allcages.html (October 2006).
TUTTE, W. T.: A family of cubical graphs, Math. Proc. Cambridge Philos. Soc. 43 (1947), 459–474.
WONG, P. K.: Cages — a survey, J. Graph Theory 6 (1982), 1–22.
WEISSTEIN, E. W.: Hoffman-Singleton Graph. From MathWorld — A Wolfram Resource (October 2006); http://mathworld.wolfram.com/Hoffman-SingletonGraph.html.
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(Communicated by Anatolij Dvurečenskij)
This research was supported by the Slovak Scientific Grant Agency VEGA No. 1/0406/09.
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Gyürki, Š. Goal-minimally k-elongated graphs. Math. Slovaca 59, 193–200 (2009). https://doi.org/10.2478/s12175-009-0117-4
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DOI: https://doi.org/10.2478/s12175-009-0117-4