Combinatorics Ninety, Recent Trends and Applications : Proceedings of the Conference on Combinatorics, Gaeta, Italy, 20-27 May 1990

, by Barlotti, A.; Bichara, A.; Ceccherini, P. V.; Tallini, G.

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ISBN: 9780444894526 | 0444894527
Cover: Hardcover
Copyright: 7/1/1992

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This volume forms a valuable source of information on recent developments in research in combinatorics, with special regard to the geometric point of view. Topics covered include: finite geometries (arcs, caps, special varieties in a Galois space; generalized quadrangles; Benz planes; foundation of geometry), partial geometries, Buekenhout geometries, transitive permutation sets, flat-transitive geometries, design theory, finite groups, near-rings and semifields, MV-algebras, coding theory, cryptography and graph theory in its geometric and design aspects.

Foreword
Irregular assignments and vertex-distinguishing edge-colorings of graphs	p. 1
Construction of non-isomorphic regular tournaments	p. 11
On structures T(t,q,r,n)	p. 25
A tactical decomposition for incidence structures	p. 37
Note on a characterization of Segre variety in PG(r,q)	p. 45
A property of sharply 3-transitive finite permutation sets	p. 49
Faithful orbits in symmetric designs	p. 61
Minimal flagtransitive geometries	p. 69
Some results on hyperarchimedean MV-algebras	p. 71
Three combinatorial sequences derivable from the lattice path counting	p. 81
Compound closed chains in circular planar nearrings	p. 93
p-primitive semifield planes	p. 107
The fractal-like Steiner triple system	p. 119
Locally partial geometries with different types of residues	p. 127
(0,n)-sets in a generalized quadrangle	p. 139
Combinatorics and cryptography	p. 159
Recent intrinsic characterizations of ovoids and elliptic quadrics in PG(3,K)	p. 175
A natural association of PGL(V)-orbits in the Segre variety (P(V))[superscript m] with flags and Young tableaux	p. 191
Decomposing Steiner triple systems into four-line configurations	p. 215
Non-symmetric configurations with deficiencies 1 and 2	p. 227
Characterizing linear spaces by blocking sets	p. 241
Partial geometries of rank n	p. 249
The minimal parabolic geometry of the Conway group Co[subscript 1] is simply connected	p. 259
Coset enumeration in groups and constructions of symmetric designs	p. 275
On the ubiquity of Denniston-type translation ovals in generalized Andre planes	p. 279
Translation planes and related combinatorial structures	p. 297
Finite reflexion groups and their corresponding structures	p. 317
On nonisomorphic BIBD with identical parameters	p. 337
Incidence loops and their geometry	p. 347
Families of Menon difference sets	p. 365
On the characterization problem for finite linear spaces	p. 381
Linear spaces in which every line of maximal degree meets only few lines	p. 391
Flag-transitive Buekenhout geometries	p. 403
Collineations of the generalized quadrangles associated with q-clans	p. 449
Projective embedding of fibered groups and the Suzuki groups	p. 463
Codes, block designs, Frobenius groups and near-rings	p. 471
The flag transitive affine planes of order 27	p. 477
Symmetric functions and bijective identities	p. 501
On the existence of nearly Kirkman systems	p. 511
Codes and semilinear spaces	p. 519
Old and new results on spreads and ovoids of finite classical polar spaces	p. 529
Large partial parallel classes in Steiner systems	p. 545
Minimal line distinguishing colourings in graphs	p. 549
Some results on -1 multiplier of difference lists	p. 559
Table of Contents provided by Blackwell. All Rights Reserved.

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Combinatorics Ninety, Recent Trends and Applications : Proceedings of the Conference on Combinatorics, Gaeta, Italy, 20-27 May 1990

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Combinatorics Ninety, Recent Trends and Applications : Proceedings of the Conference on Combinatorics, Gaeta, Italy, 20-27 May 1990

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