Journal of Combinatorial Theory, Series A, Volume 52

Volume 52, Number 1, September 1989

• Endre Boros, Zoltán Füredi, Jeff Kahn:
  Maximal intersecting families and affine regular polygons in PG(2, q). 1-9
  
• Charles J. Colbourn:
  Simple neighbourhoods in triple systems. 10-19
  
• Brian Alspach, Paul J. Schellenberg, Douglas R. Stinson, David Wagner:
  The Oberwolfach problem and factors of uniform odd length cycles. 20-43
  
• Yutaka Hiramine:
  A conjecture on affine planes of prime order. 44-50
  
• Sunanda Bagchi, Bhaskar Bagchi:
  Designs from pairs of finite fields. A cyclic unital U(6) and other regular steiner 2-designs. 51-61
  
• Jurek Czyzowicz, Daniele Mundici, Andrzej Pelc:
  Ulam's searching game with lies. 62-76
  
• Thomas W. Cusick:
  Recurrences for sums of powers of binomial coefficients. 77-83
  
• Zsolt Tuza:
  Minimum number of elements representing a set system of given rank. 84-89
  
• Makoto Matsumoto, Norihide Tokushige:
  The exact bound in the Erd$ouml;s-Ko-Rado theorem for cross-intersecting families. 90-97
  
• James Gary Propp:
  Some variants of Ferrers diagrams. 98-128
  
• Peter Frankl, Zoltán Füredi:
  Extremal problems whose solutions are the blowups of the small witt-designs. 129-147
  
• László Babai:
  The probability of generating the symmetric group. 148-153
  
• A. A. Bruen:
  Kummer configurations and designs embedded in planes. 154-157
  
• Zbigniew Lonc:
  On decomposition of hypergraphs into Delta-systems. 158-162
  

Volume 52, Number 2, November 1989

• Anders Björner, Michelle L. Wachs:
  q-Hook length formulas for forests. 165-187
  
• K. T. Arasu, Dieter Jungnickel:
  Affine difference sets of even order. 188-196
  
• Vladimir D. Tonchev:
  Self-orthogonal designs and extremal doubly even codes. 197-205
  
• Joe D. Chavez:
  A natural notion of morphism for linear programming problems. 206-227
  
• Pankaj K. Agarwal, Micha Sharir, Peter W. Shor:
  Sharp upper and lower bounds on the length of general Davenport-Schinzel sequences. 228-274
  
• Noga Alon, Joel H. Spencer:
  Ascending waves. 275-287
  
• Ákos Seress:
  Some characterizations of type-1 lambda-designs. 288-300
  
• Dieter Jungnickel:
  A new family of relative difference sets. 301-303
  
• Peter J. M. van Laarhoven, Emile H. L. Aarts, Jack H. van Lint, L. T. Wille:
  New upper bounds for the football pool problem for 6, 7, and 8 matches. 304-312
  
• Hans Jürgen Prömel, Bernd Voigt:
  A short proof of the restricted Ramsey theorem for finite set systems. 313-320