Báo cáo toán học: "Bicoloring Steiner Triple Systems" ppt

... examine only bicolorings of Steiner triple systems. A coloring ϕ of D is a bicoloring if for all B ∈B,|ϕ(B)|=2,where ϕ(B)=∪ v∈B ϕ(v). This definition implies that in a triple system every triple has two elements ... Upper chromatic number of Steiner triple and quadruple systems, Discrete Math. 174 (1997), 247-259. [6] L. Milazzo, Zs. Tuza, Strict colourings for classes of Steiner...

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... can be several seemingly different evaluations of any triple Euler sum. Our main goal is therefore not so much to find the actual evaluations for the triple sums (although our methods also give us those ... solution in the cases stated in the theorem, where we treat the triple sums as unknowns. Thus we then know that there is an evaluation of the triple sums in terms of rational linear...

Ngày tải lên: 07/08/2014, 06:20

... Upper chromatic number of Steiner triple and quadruple systems, Discrete Math., 174 (1997), 247-259. [7] L. Milazzo and Zs. Tuza, Strict clourings for classes of Steiner triple systems, Discrete Math., ... C.J. Colbourn, J.H. Dinitz and A. Rosa, Bicoloring Steiner triple systems, Electron. J. Combin., 6, (1999), R25. [2] C.J. Colbourn and A. Rosa, Triple Systems, Oxford Mathemat...

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... a = 0, a  = 0 or a = a  1 otherwise. We shall take V = F 3 , and whenever possible we write a triple (a, b, c) ∈ V simply as abc. We endow V with the symplectic form (abc|a  b  c  ) = (a|a  )

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