Combinatorica, Volume 23

Volume 23, Number 1, January 2003

• Rudolf Ahlswede, Harout K. Aydinian, Levon H. Khachatrian:
  Maximum Number of Constant Weight Vertices of the Unit n-Cube Contained in a k-Dimensional Subspace. 5-22
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• Anders Björner, Mark de Longueville:
  Neighborhood Complexes of Stable Kneser Graphs. 23-34
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• Béla Csaba, Ali Shokoufandeh, Endre Szemerédi:
  Proof of a Conjecture of Bollobás and Eldridge for Graphs of Maximum Degree Three. 35-72
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• Robert Guralnick, Aner Shalev:
  On the Spread of Finite Simple Groups. 73-87
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• András Hajnal, Péter Komjáth:
  Some Remarks on the Simultaneous Chromatic Number. 89-104
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• Deryk Osthus, Hans Jürgen Prömel, Anusch Taraz:
  For Which Densities are Random Triangle-Free Graphs Almost Surely Bipartite? 105-150
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• Pavel Valtr:
  Davenport-Schinzel Trees. 151-184
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Volume 23, Number 2, April 2003

• Guantao Chen, Ronald J. Gould, Xingxing Yu:
  Graph Connectivity After Path Removal. 185-203
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• Irit Dinur, Guy Kindler, Ran Raz, Shmuel Safra:
  Approximating CVP to Within Almost-Polynomial Factors is NP-Hard. 205-243
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• Friedrich Eisenbrand, Andreas S. Schulz:
  Bounds on the Chvátal Rank of Polytopes in the 0/1-Cube. 245-261
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• Kevin Ford:
  Maximal Collections of Intersecting Arithmetic Progressions. 263-281
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• Grigor Gasparyan, Myriam Preissmann, András Sebö:
  Imperfect and Nonideal Clutters: A Common Approach. 283-302
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• André E. Kézdy, Jenö Lehel, Robert C. Powers:
  Heavy Transversals and Indecomposable Hypergraphs. 303-310
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• Jeong Han Kim, Van H. Vu:
  Small Complete Arcs in Projective Planes. 311-363
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Volume 23, Number 3, July 2003

• Sanjeev Arora, Madhu Sudan:
  Improved Low-Degree Testing and its Applications. 365-426
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• Richard Ehrenborg, Harold Fox:
  Inequalities for cd-Indices of Joins and Products of Polytopes. 427-452
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• Gasper Fijavz, Bojan Mohar:
  K₆-Minors in Projective Planar Graphs. 453-465
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• Zhicheng Gao, Nicholas C. Wormald:
  Sharp Concentration of the Number of Submaps in Random Planar Triangulations. 467-486
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• Yair Glasner:
  Ramanujan Graphs with Small Girth. 487-502
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• Satoru Iwata, S. Thomas McCormick, Maiko Shigeno:
  Fast Cycle Canceling Algorithms for Minimum Cost Submodular Flow*. 503-525
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• Hunter S. Snevily:
  A Sharp Bound for the Number of Sets that Pairwise Intersect at k Positive Values. 527-533
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Volume 23, Number 4, December 2003

• Etsuko Bannai, Kazuki Kawasaki, Yusuke Nitamizu, Teppei Sato:
  An Upper Bound for the Cardinality of an s-Distance Set in Euclidean Space. 535-557
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• Béla Bollobás, Imre Leader:
  Set Systems with few Disjoint Pairs. 559-570
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• James D. Currie, Cameron W. Pierce:
  The Fixing Block Method in Combinatorics on Words. 571-584
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• András Gács:
  On a Generalization of Rédei's Theorem. 585-598
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• Weidong Gao, Yahya Ould Hamidoune, Anna S. Lladó, Oriol Serra:
  Covering a Finite Abelian Group by Subset Sums. 599-611
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• Martin Grohe:
  Local Tree-Width, Excluded Minors, and Approximation Algorithms. 613-632
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• Hein Holst:
  Two Tree-Width-Like Graph Invariants. 633-651
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• Louis Kauffman, Robin Thomas:
  Temperely-Lieb Algebras and the Four-Color Theorem. 653-667
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• Hanno Lefmann:
  On Heilbronn's Problem in Higher Dimension. 669-680
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• Zhi-Wei Sun:
  On the Function w(x)=|{1= s= k : x= a_s (mod n_s)}|. 681-691
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• Stephan Brandt:
  Note. 693-696
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