Journal of Combinatorial Theory, Series A, Volume 32

Volume 32, Number 1, January 1982

Jacob E. Goodman, Richard Pollack: Helly-Type Theorems for Pseudoline Arrangements in P². 1-19
Tom C. Brown, J. P. Buhler: A Density Version of a Geometric Ramsey Theorem. 20-34
Robert Day, Anne Penfold Street: Sequential Binary Arrays. I. The Square Grid. 35-52
Douglas R. Stinson: The Existence of Howell Designs of Odd Side. 53-65
Zoltán Füredi: An Intersection Problem Whose Extremum Is the Finite Projective Space. 66-72
Agnes Hui Chan, Dwijendra K. Ray-Chaudhuri: Embedding of a Pseudo-residual Design into a Möbius Plane. 73-98
Peter Hauck: Eine Charakterisierung des Steinersystems S(5, 8, 24). 99-102
H. J. Ryser: The Existence of Symmetric Block Designs. 103-105
Jean-Eric Pin, Imre Simon: A Note on the Triangle Conjecture. 106-109
Horst Wegner: A Note on Unimodality and Asymptotic Normality. 110-114
Walter A. Deuber: On van der Waerden's Theorem on Arithmetic Progressions. 115-118
Ulrich Dempwolff, Arthur Reifart: Translation Planes of Order 16 Admitting a Baer 4-Group. 119-124

Richard P. Stanley: Some Aspects of Groups Acting on Finite Posets. 132-161
H. J. Ryser: Set Intersection Matrices. 162-177
Jeffrey S. Leon, Vera Pless, Neil J. A. Sloane: Self-Dual Codes over GF(5). 178-194
D. H. Lehmer: Generalized Eulerian Numbers. 195-215
Donald E. Knuth: Huffman's Algorithm via Algebra. 216-224
Walter A. Deuber, B. L. Rothschild, Bernd Voigt: Induced Partition Theorems. 225-240
Fan R. K. Chung, Paul Erdös, Ronald L. Graham: Minimal Decompositions of Hypergraphs into Mutually Isomorphic Subhypergraphs. 241-251
Peter J. Cameron, Jack H. van Lint: On the Partial Geometry pg(6, 6, 2). 252-255
R. H. Bruck: The Automorphism Group of a Circle Geometry. 256-263
W. G. Bridges, R. A. Mena: Rational G-Matrices with Rational Eigenvalues. 264-280
L. H. Harper: Linear Programming, the Global Approach. 281-298
William M. Kantor: Translation Planes of Order q⁶ Admitting SL(2, q²). 299-302

Dwight Duffus: Matching in Modular Lattices. 303-314
F. M. Dekking: Replicating Superfigures and Endomorphisms of Free Groups. 315-320
Miklós Ajtai, János Komlós, Janos Pintz, Joel Spencer, Endre Szemerédi: Extremal Uncrowded Hypergraphs. 321-335
Gábor Korchmáros: Moufang Loops of Odd Prime Exponent p and a Class of Linear Spaces of Order p. 336-349
John S. Sumner, Alton T. Butson: Addition Sets in a Finite Group. 350-369
John S. Sumner, Alton T. Butson: Generalized Relative Difference Sets and Partially Balanced Incomplete Block Designs. 370-377
Zvonimir Janko, Tran van Trung: A Generalization of a Result of L. Baumert and M. Hall About Projective Planes of Order 12. 378-385
Aeryung Moon: An Analogue of the Erdös-Ko-Rado Theorem for the Hamming Schemes H(n, q). 386-390
B. M. I. Rands: An Extension of the Erdös, Ko, Rado Theorem to t-Designs. 391-395
Ding-Zhu Du, E. Y. Yao, Frank K. Hwang: A Short Proof of a Result of Pollak on Steiner Minimal Trees. 396-400
Zvonimir Janko, Tran van Trung: Projective Planes of Order 12 Do Not Have a Four Group as a Collineation Group. 401-404
Donald Y. Goldberg, Anita E. Solow: Codes with the Same Lee Weight Enumerator Are Isometric. 405-406