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Journal of Combinatorial Theory, Series B, Volume 50
Volume 50, Number 1, October 1990
- Ron Aharoni, E. C. Milner, Karel Prikry:

Unfriendly partitions of a graph. 1-10 - Yves Colin de Verdière:

Sur un nouvel invariant des graphes et un critère de planarité. 11-21 - Myriam Preissmann:

Locally perfect graphs. 22-40 - Joseph P. S. Kung:

The long-line graph of a combinatorial geometry. II. Geometries representable over two fields of different characteristics. 41-53 - Gil Kalai:

Symmetric matroids. 54-64 - Luis A. Goddyn:

Quantizers and the worst-case Euclidean traveling salesman problem. 65-81 - Ron Aharoni, Ran Ziv:

LP duality in infinite hypergraphs. 82-92 - Reinhard Diestel:

Simplicial tree-decompositions of infinite graphs. II. The existence of prime decompositions. 93-116 - Reinhard Diestel:

Simplicial tree-decompositions of infinite graphs. III. The uniqueness of prime decompositions. 117-128 - Feng-Chu Lai, Gerard J. Chang

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An upper bound for the transversal numbers of 4-uniform hypergraphs. 129-133
Volume 50, Number 2, December 1990
- David B. Surowski:

Lifting map automorphisms and MacBeath's theorem. 135-149 - Éva Tardos:

An intersection theorem for supermatroids. 150-159 - Kazumasa Nomura:

Distance-regular graphs of hamming type. 160-167 - Ron Aharoni, Mao Lin Zheng:

Counting 1-factors in infinite graphs. 168-178 - Elke Wilkeit:

Isometric embeddings in Hamming graphs. 179-197 - Carsten Thomassen:

Bidirectional retracting-free double tracings and upper embeddability of graphs. 198-207 - Marion Alfter, Walter Kern, Alfred Wanka:

On adjoints and dual matroids. 208-213 - Kazumasa Nomura:

Intersection diagrams of distance-biregular graphs. 214-221 - Marc E. Bertschi:

Perfectly contractile graphs. 222-230 - Alain Hertz:

A fast algorithm for coloring Meyniel graphs. 231-240 - Yahya Ould Hamidoune:

On the numbers of independent k-sets in a claw free graph. 241-244 - Herbert Fleischner, András Frank

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On circuit decomposition of planar Eulerian graphs. 245-253 - Denise Amar, Yannis Manoussakis:

Cycles and paths of many lengths in bipartite digraphs. 254-264 - Jon Lee

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The incidence structure of subspaces with well-scaled frames. 265-287 - Li Jiongsheng, Huang Daode, Pan Qun:

Digraphs with degree equivalent induced subdigraphs. 288-298 - W. Bienia, I. P. da Silva:

On the inversion of the sign of one basis in an oriented matroid. 299-308 - Béla Bollobás, Roland Häggkvist:

Powers of Hamilton cycles in tournaments. 309-318 - Shaoji Xu:

The size of uniquely colorable graphs. 319-320 - Peter Horák:

A coloring problem related to the Erdös-Faber-Lovász conjecture. 321-322

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