Journal of Combinatorial Theory, Series A, Volume 22

Volume 22, Number 1, January 1977

David C. Rine: Optimizing Two Types of Discrete Functions, Subject to Linear Restrictions. 1-16
Harold Fredricksen, Irving J. Kessler: Lexicographic Compositions and deBruijn Sequences. 17-30
D. M. Silberger: Uniformly Deep Families of k-Membered Subsets of n. 31-37
Henry Beker, Fred Piper: Some Designs Which Admit Strong Tactical Decompositions. 38-42
Clement W. H. Lam: Cyclotomy and Addition Sets. 43-60
Melvyn B. Nathanson: Permutations, Periodicity, and Chaos. 61-68
Michael Aissen: Varieties of Binary Systems. 69-82
Mark P. Hale Jr.: Finite Geometries which Contain Dual Affine Planes. 83-91
David M. Jackson: The Unification of Certain Enumeration Problems. 92-96
Charles C. Lindner, Alexander Rosa: A Partial Room Square Can be Embedded in a Room Square. 97-102
Edward Spence: A Family of Difference Sets. 103-106
Eugenio Calabi, Herbert S. Wilf: On the Sequential and Random Selection of Subspaces over a Finite Field. 107-109
F. J. MacWilliams, Andrew M. Odlyzko: Pelikán's Conjecture Cyclotomic Cosets. 110-114
V. J. Baston, F. A. Bostock: Copying Configurations in Algebraic Extensions of Prime Fields. 115-117
Peter Yff: On Subplane Partitions of a Finite Projective Plane. 118-122

Jim Totten: Embeddability of Restricted Linear Spaces. 123-128
L. Carlitz, Richard Scoville: Some Permutation Problems. 129-145
Oliver Pretzel: On the Dimension of Partially Ordered Sets. 146-152
J. I. Hall: On Two Conjectures of Stanton and Mullin. 153-162
Sanpei Kageyama: Classifications of Certain t-Designs. 163-168
Leonard E. Baum, Norman P. Herzberg, S. J. Lomonaco Jr., Melvin M. Sweet: Fields of Almost Periodic Sequences. 169-180
H. J. Ryser: The Factors of a Design Matrix. 181-193
Richard A. Brualdi: Convex Polyhedra of Doubly Stochastic Matrices. I. Applications of the Permanent Function. 194-230
J. S. Huang, B. L. Raktoe: A Note on the Proportion of Singular (0, 1)-Matrices in a Class Associated with Fractional 2ⁿ Factorial Designs. 231-234
L. Carlitz: Some Combinatorial Identities of Sarmanov, Sevast'yanov, and Tarakanov. 235-240
V. J. Baston, F. A. Bostock: Generalizations of a Combinatorial Lemma of Kelly. 241-245
H. O. Foulkes: A Nonrecursive Combinatorial Rule for Eulerian Numbers. 246-248
P. Frankl: On the Minimum Number of Disjoint Pairs in a Family of Finite Sets. 249-251

Robert E. Jamison: Covering Finite Fields with Cosets of Subspaces. 253-266
Stanley E. Payne: Generalized Quadrangles of Order 4. I. 267-279
Stanley E. Payne: Generalized Quadrangles of Order 4. II. 280-288
Jaroslav Nesetril: Partitions of Finite Relational and Set Systems. 289-312
Albert L. Wells Jr.: On the Completion of Partial Latin Squares. 313-321
Vassili C. Mavron: Translations and Parallel Classes of Lines in Affine Designs. 322-330
A. Hedayat: A Complete Solution to the Existence and Nonexistence of Knut Vik Designs and Orthogonal Knut Vik Designs. 331-337
Richard A. Brualdi, Peter M. Gibson: Convex Polyhedra of Doubly Stochastic Matrices III. Affine and Combinatorial Properties of Omega_n. 338-351
Peter Frankl, Mikhail Deza: On the Maximum Number of Permutations with Given Maximal or Minimal Distance. 352-360
W. G. Bridges: A Characterization of Type-1 lambdy-Designs. 361-367
G. F. Clements: An Existence Theorem for Antichains. 368-371
Daniel E. Novoseller, M. L. Glasser: A Combinatorial Identity. 372-377
Gary S. Bloom: A Counterexample to a Theorem of S. Piccard. 378-379
Richard N. Ball: Decomposition of Nonnegative Integral Matrices. 380-383