Discrete Mathematics, Volume 212

Volume 212, Numbers 1-2, February 2000

• Jens-P. Bode, Heiko Harborth:
  Hexagonal polyomino achievement. 5-18
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• Mieczyslaw Borowiecki, Izak Broere, Peter Mihók:
  Minimal reducible bounds for planar graphs. 19-27
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• Gilles Caporossi, Pierre Hansen:
  Variable neighborhood search for extremal graphs: 1 The AutoGraphiX system. 29-44
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• Dragos Cvetkovic:
  On the reconstruction of the characteristic polynomial of a graph. 45-52
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• Walter A. Deuber, Alexandr V. Kostochka:
  On degrees of vertices in paradoxical trees. 53-59
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• Igor Fabrici, Erhard Hexel, Stanislav Jendrol, Hansjoachim Walther:
  On vertex-degree restricted paths in polyhedral graphs. 61-73
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• Patrick W. Fowler, Arnout Ceulemans, Liviu F. Chibotaru:
  Eigenvalues of Hückel systems of equivalent points. 75-90
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• Yubao Guo, Meike Tewes, Lutz Volkmann, Anders Yeo:
  Sufficient conditions for semicomplete multipartite digraphs to be Hamiltonian. 91-100
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• Mirko Hornák, Stanislav Jendrol:
  On vertex types and cyclic colourings of 3-connected plane graphs. 101-109
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• Stanislav Jendrol, Heinz-Jürgen Voss:
  A local property of polyhedral maps on compact two-dimensional manifolds. 111-120
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• Antoni Marczyk, Günter Schaar:
  On traceable powers of digraphs. 121-128
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• Mariusz Meszka, Zdzislaw Skupien:
  On some third parts of nearly complete digraphs. 129-139
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• Ingo Schiermeyer, Zsolt Tuza, Margit Voigt:
  On-line rankings of graphs. 141-147
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• Jerzy Topp, Preben D. Vestergaard:
  alpha_k- and gamma_k-stable graphs. 149-160
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• Walter Wessel:
  A short solution of Heawood's empire problem on the torus and implications for higher genus. 161-165
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Volume 212, Number 3, February 2000

• Eric K. Babson, Clara S. Chan:
  Counting faces of cubical spheres modulo two. 169-183
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• Gek Ling Chia:
  On self-clique graphs with given clique sizes. 185-189
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• Seul Hee Choi:
  Counting lattice paths in restricted planes. 191-198
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• Qingde Kang, Zihong Tian:
  Large sets of oriented triple systems with resolvability. 199-221
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• Jiong-Sheng Li, Zi-Xia Song:
  An extremal problem on the potentially P_k-graphic sequences. 223-231
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• Qi Zhang Liu, H. P. Yap:
  Edge colorings of K_2n with a prescribed condition - I. 233-244
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• Jian Shen, David A. Gregory:
  Exponents of vertex-transitive digraphs. 245-255
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• J. F. Weng, J. H. Rubinstein:
  A note on the compression theorem for convex surfaces. 257-260
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• Heping Zhang, Fuji Zhang:
  The Clar covering polynomial of hexagonal systems III. 261-269
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