Journal of Combinatorial Theory, Series B, Volume 46

Volume 46, Number 1, February 1989

• Medha Dhurandhar:
  On the chromatic number of a graph with two forbidden subgraphs. 1-6
  
• Thomas Andreae, Martin Aigner:
  The total interval number of a graph. 7-21
  
• Merrick L. Furst, Jonathan L. Gross, Richard Statman:
  Genus distributions for two classes of graphs. 22-36
  
• Amanda G. Chetwynd, Anthony J. W. Hilton:
  A Delta-subgraph condition for a graph to be class 1. 37-45
  
• Alexander Schrijver:
  Distances and cuts in planar graphs. 46-57
  
• Edward A. Bender, E. Rodney Canfield:
  Face sizes of 3-polytopes. 58-65
  
• Michael B. Dillencourt:
  An upper bound on the shortness exponent of inscribable polytopes. 66-83
  
• Nora Hartsfield, Gerhard Ringel:
  Minimal quadrangulations of orientable surfaces. 84-95
  
• Seth Chaiken:
  The Tutte polynomial of a ported matroid. 96-117
  
• Mark D. Halsey:
  Extending a combinatorial geometry by adding a unique line. 118-120
  
• John P. Georges:
  Non-hamiltonian bicubic graphs. 121-124
  

Volume 46, Number 2, April 1989

• Jaroslav Nesetril:
  For graphs there are only four types of hereditary Ramsey classes. 127-132
  
• Jaroslav Nesetril, Vojtech Rödl:
  Chromatically optimal rigid graphs. 133-141
  
• Jean-Claude Bermond, Odile Favaron, Maryvonne Mahéo:
  Hamiltonian decomposition of Cayley graphs of degree 4. 142-153
  
• Ury Jamshy, Michael Tarsi:
  Cycle covering of binary matroids. 154-161
  
• George R. T. Hendry:
  Extending cycles in directed graphs. 162-172
  
• Dan Archdeacon, Phil Huneke:
  A Kuratowski theorem for nonorientable surfaces. 173-231
  
• John Ginsburg, Bill Sands, Douglas B. West:
  A length-width inequality for partially ordered sets with two-element cutsets. 232-239
  
• Amanda G. Chetwynd, Anthony J. W. Hilton, Dean G. Hoffman:
  On the Delta-subgraph of graphs which are critical with respect to the chromatic index. 240-245
  
• Dieter Jungnickel, Matthias Leclerc:
  The 2-matching lattice of a graph. 246-248
  
• Shmuel Friedland:
  Every 7-regular digraph contains an even cycle. 249-252
  
• Luis A. Goddyn:
  Cycle double covers of graphs with Hamilton paths. 253-254
  

Volume 46, Number 3, June 1989

• Carsten Thomassen:
  Whitney's 2-switching theorem, cycle spaces, and arc mappings of directed graphs. 257-291
  
• James G. Oxley:
  The regular matroids with no 5-wheel minor. 292-305
  
• Martin Grötschel, Klaus Truemper:
  Decomposition and optimization over cycles in binary matroids. 306-337
  
• Walter Klotz:
  Clique covers and coloring problems of graphs. 338-345
  
• Karen Anne Johnson, Roger C. Entringer:
  Largest induced subgraphs of the n-cube that contain no 4-cycles. 346-355
  
• Yoshimi Egawa, Takashi Miyamoto:
  The longest cycles in a graph G with minimum degree at least |G|/k. 356-362
  
• Hong-Jian Lai:
  Unique graph homomorphisms onto odd cycles, II. 363-376