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European Journal of Combinatorics, Volume 12
Volume 12, Number 1, January 1991
- Chu Wenchang:
Some Multifold Reciprocal Transformations with Applications to Series Expansions. 1-8 - Lucien Haddad, Ivo G. Rosenberg:
Partial Sheffer Operations. 9-21 - Guy Hanssens:
Polarized Spaces of Polar Rank Three Which are Locally a Direct Product. 23-31 - Pavol Hell, Jaroslav Nesetril:
Images of Rigid Digraphs. 33-42 - Thomas Müller:
A Group-theoretical Generalization of Pascal's Triangle. 43-49 - Christine M. O'Keefe, Tim Penttila:
Hyperovals in PG(2, 16). 51-59 - Andrzej Pelc, Ivan Rival:
Orders with Level Diagrams. 61-68 - Bruce E. Sagan:
A maj Statistic for Set Partitions. 69-79 - Igor E. Shparlinski:
On the Distribution of Values of Recurring Sequences and the Bell Numbers in Finite Fields. 81-87
Volume 12, Number 2, March 1991
- Thomas Bier:
Totient Numbers of an Arithmetic Progression in a Hypercube: the Case of Step Length 2. 91-94 - Charles Delorme, Patrick Solé:
Diameter, Covering Index, Covering Radius and Eigenvalues. 95-108 - I. P. Goulden:
The Number of Involutions with r Fixed Points and a Long Increasing Subsequence. 109-113 - Willem H. Haemers:
Regular 2-Graphs and Extensions of Partial Geometries. 115-123 - Robert A. Liebler:
The Classification of Distance-transitive Graphs of type q.Kq, q. 125-128 - Udo Pachner:
P.L. Homeomorphic Manifolds are Equivalent by Elementary 5hellingst. 129-145 - Antonio Pasini:
Groups for Geometries in Given Diagrams, II: on a Characterization of the Group Aut(HS). 147-158 - Satoshi Yoshiara:
A Classification of Flag-transitive Classical c.C2-geometries by Means of Generators and Relations. 159-181
- Michael Scheutzow:
Periods of Non-expansive Operators on Finite l1-Spaces. 183
Volume 12, Number 3, May 1991
- László Babai, Albert J. Goodman, László Lovász:
Graphs with Given Automorphism Group and Few Edge Orbits. 185-203 - Dieter Blessenohl, Hartmut Laue:
On the Coefficients in the Associative Expansion of a Lie Word. 205-210 - Yahya Ould Hamidoune:
On the Subsets Product in Finite Groups. 211-221 - Daniel R. Hughes, Navin M. Singhi:
Partitions in Matrices and Graphs. 223-235 - Roberto Mantaci:
Anti-exceedances in Permutation Groups. 237-244 - Crispin St. John Alvah Nash-Williams:
Another Proof of a Theorem Concerning Detachments of Graphs. 245-247 - Heinrich Niederhausen:
Polynomials of Binomial Type from Truncated Delta Series. 249-258 - James G. Oxley, Geoff Whittle:
A Note on the Non-spanning Circuits of a Matroid. 259-261 - Sándor Szabó:
Lattice Covering by Semicrosses of Arm Length 2. 263-266 - Peter Yff:
On the Dénes-Hermann Theorem: a Different Approach. 267-270
Volume 12, Number 4, July 1991
- Christine Bessenrodt:
A Combinatorial Proof of a Refinement of the Andrews - Olsson Partition Identity. 271-276 - Albrecht Beutelspacher, Johannes Ueberberg:
A Characteristic Property of Geometric t-Spreads in Finite Projective Spaces. 277-281 - Anders Björner, László Lovász, Peter W. Shor:
Chip-firing Games on Graphs. 283-291 - Alberto Del Fra, Dina Ghinelli:
Diameter Bounds for Locally Partial Geometries. 293-307 - David A. Grable:
Two Packing Problems on k-Matroid Trees. 309-316 - Takuya Ikuta, Tatsuro Ito, Akihiro Munemasa:
On Pseudo-automorphisms and Fusions of an Association Scheme. 317-325 - Christian Radoux:
Déterminant de Hankel Construit sur des Polynômes Liés aux Nombres de Dérangements. 327-329 - Jonathan D. H. Smith:
Finite Codes and Groupoid Words. 331-339 - Thomas Wanner, Günter M. Ziegler:
Supersolvable and Modularly Complemented Matroid Extensions. 341-360 - Thomas Zaslavsky:
Orientation of Signed Graphs. 361-375
Volume 12, Number 5, September 1991
- Béla Bajnok:
Construction of Designs on the 2-Sphere. 377-382 - P. H. Fisher:
Extended 4 × 4 Grids. 383-388 - Germain Kreweras:
Sur les Polynômes de Catalan Simples et Doubles. 389-396 - Thomas Meixner:
Some Polar Towers. 397-415 - János Pach, Norbert Sauer:
On the Average Volume of Subsets in Euclidean d-Space. 417-421 - Patrick Solé:
The Covering Radius of Spherical Designs. 423-431 - Martin C. Tangora:
Level Number Sequences of Trees and the Lambda Algebra. 433-443 - Andrew Vince:
Elementary Divisors of Graphs and Matroids. 445-453
Volume 12, Number 6, November 1991
- David Bedford:
Transversals in the Cayley Tables of the Non-cyclic Groups of Order 8. 455-458 - Francesco Brenti:
Log-concavity and Combinatorial Properties of Fibonacci Lattices. 459-476 - Anthony B. Evans:
Maximal Sets of Mutually Orthogonal Latin Squares. I. 477-482 - Zoltán Füredi, András Gyárfás:
Covering t-element Sets by Partitions. 483-489 - Gert Hillebrandt:
Describing of Thin Geometries Using Hecke Groups. 491-497 - James W. P. Hirschfeld, Tamás Szönyi:
Constructions of Large Arcs and Blocking Sets in Finite Planes. 499-511 - Tatsuro Ito, Akihiro Munemasa, Mieko Yamada:
Amorphous Association Schemes over the Galois Rings of Characteristic 4. 513-526 - W. B. R. Lickorish:
Unshellable Triangulations of Spheres. 527-530 - James G. Oxley:
On Minors Avoiding Elements in Matroids. 531-539 - Dmitrii V. Pasechnik:
Dual Linear Extensions of Generalised Quadrangles. 541-548 - Douglas G. Rogers:
On the General Erdös Conjecture for Perfect Systems of Difference Sets and Embedding Partial Complete Permutations. 549-560 - Laurence Van Nypelseer:
Rank n Geometries with Affine Hyperplanes and Dual Affine Point Residues. 561-566
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