Discrete Mathematics, Volume 80

Volume 80, Number 1, February 1990

• Stefan Arnborg, Andrzej Proskurowski, Derek G. Corneil:
  Forbidden minors characterization of partial 3-trees. 1-19
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• Ehab S. Elmallah, Charles J. Colbourn:
  On two dual classes of planar graphs. 21-40
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• Jean-Luc Fouquet, Henri Thuillier:
  On some conjectures on cubic 3-connected graphs. 41-57
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• Oded Goldreich:
  On the number of monochromatic close pairs of beads in a rosary. 59-68
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• Haoru Huang, N. L. Johnson:
  8 semifield planes of order 8². 69-79
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• P. Katerinis:
  Toughness of graphs and the existence of factors. 81-92
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• M. S. Shrikhande, N. M. Singhi:
  An elementary derivation of the annihilator polynomial for extremal (2s + 1)-designs. 93-96
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• David Gluck:
  A note on permutation polynomials and finite geometries. 97-100
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• Alan R. Prince:
  The commutative ring of a symmetric design. 101-103
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• G. Ravindra:
  Problems 121-127. Posed by G. Rayindra. 105-109
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Volume 80, Number 2, March 1990

• M. D. Atkinson, Alberto Negro, Nicola Santoro:
  Sums of lexicographically ordered sets. 115-122
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• Jason I. Brown, David Kelly, J. Schönheim, Robert E. Woodrow:
  Graph coloring satisfying restraints. 123-143
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• Peter Flach, Lutz Volkmann:
  Estimations for the domination number of a graph. 145-151
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• Neil Hindman:
  On creating sets with large lower density. 153-157
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• Mikio Kano:
  Sufficient conditions for a graph to have factors. 159-165
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• Dragan Marusic:
  Hamiltonicity of tree-like graphs. 167-173
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• S. Stueckle:
  Chromatic automorphisms and symmetries of some graphs. 175-181
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• Dennis E. White:
  Hybrid tableaux and the Littlewood- Richardson rule. 183-206
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• Doron Zeilberger:
  A fast algorithm for proving terminating hypergeometric identities. 207-211
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• Yanling Yang:
  On a conjecture about monochromatic flats. 213-216
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• H. P. Yap:
  Corrigendum to: on graphs critical with respect to edge-colourings. 223
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Volume 80, Number 3, March 1990

• Pascale Charpin:
  Codes cycliques étendus affines-invariants et antichaines d'un ensemble partiellement ordonne. 229-247
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• W. Edwin Clark, Larry A. Dunning, D. G. Rogers:
  Binary set functions and parity check matrices. 249-265
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• Richard Z. Goldstein, Edward C. Turner:
  Counting orbits of a product of permutations. 267-272
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• Charles C. Lindner, Christopher A. Rodger, Douglas R. Stinson:
  Small embeddings for partial cycle systems of odd length. 273-280
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• Stephan Olariu:
  Wings and perfect graphs. 281-296
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• A. G. Robinson, A. J. Goldman:
  On ringeisen's isolation game. 297-312
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• Raffaele Scapellato:
  On F-geodetic graphs. 313-325
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• Matthias Middendorf, Frank Pfeiffer:
  On the complexity of recognizing perfectly orderable graphs. 327-333
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• Sherman Stein:
  The notched cube tiles Rⁿ. 335-337
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