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Journal of Combinatorial Theory, Series B, Volume 28
Volume 28, Number 1, February 1980
- V. A. Aksionov, Leonid S. Melnikov:
Some counterexamples associated with the three-color problem. 1-9 - F. W. Clarke, A. D. Thomas, D. A. Waller:
Embeddings of covering projections of graphs. 10-17 - Stephane Foldes:
Symmetries of directed graphs and the Chinese remainder theorem. 18-25 - Ulrich Faigle:
Geometries on partially ordered sets. 26-51 - S. Beraha, J. Kahane, N. J. Weiss:
Limits of chromatic zeros of some families of maps. 52-65 - Jack E. Graver, W. B. Jurkat:
f-Factors and related decompositions of graphs. 66-84 - Daniel J. Kleitman, David Joseph Kwiatkowski:
Further results on the Aanderaa-Rosenberg conjecture. 85-95 - Charles R. Johnson, Morris Newman:
A note on cospectral graphs. 96-103
Volume 28, Number 2, April 1980
- W. T. Tutte:
On the enumeration of convex polyhedra. 105-126 - Ioan Tomescu:
Some properties of irreducible coverings by cliques of complete multipartite graphs. 127-141 - Carsten Thomassen:
Hamiltonian-connected tournaments. 142-163 - Rudolf Ahlswede:
Simple hypergraphs with maximal number of adjacent pairs of edges. 164-167 - Peter J. Cameron:
6-Transitive graphs. 168-179 - Yousef Alavi, M. Behzad, E. A. Nordhaus:
Minimal separating sets of maximum size. 180-183 - Victor Klee:
Classification and enumeration of minimum (d, 3, 3)-graphs for odd d. 184-207 - László Lovász:
Matroid matching and some applications. 208-236 - Paul D. Seymour:
Packing and covering with matroid circuits. 237-242 - William G. Frye, Renu C. Laskar:
Path number of bipartite digraphs. 243-244 - Rainer E. Burkard, Peter L. Hammer:
A note on Hamiltonian split graphs. 245-248 - James G. Oxley:
On Hartfiel and Maxson's definition of connected sets of a matroid. 249-250
Volume 28, Number 3, June 1980
- András Frank:
On the orientation of graphs. 251-261 - P. J. Owens:
On regular graphs and Hamiltonian circuits, including answers to some questions of Joseph Zaks. 262-277 - László Babai, Ales Pultr:
Endomorphism monoids and topological subgraphs of graphs. 278-283 - George J. Minty:
On maximal independent sets of vertices in claw-free graphs. 284-304 - Paul D. Seymour:
Decomposition of regular matroids. 305-359
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