Combinatorics 2008

International conference on pure and applied combinatorics
and its connections with Geometry, Graph Theory and Algebra

Costermano (VR), Sunday 22 June to Saturday 28 June 2008

List of talks

Special session in Honor of G. Ferrero

  1. Erhard Aichinger (Johannes Kepler University Linz, Austria): "The surprising ubiquity of planar near-Rings"
  2. Hermann Kautschitsch (Alpen-Adria Universität Klagenfurt, Austria): "Near-ring constructions by R-modules"
  3. Guenter Pilz (University of Linz, Austria): "Block Designs From Near-Rings And Their Use In Agriculture"
  4. Momme J. Thomsen (Helmut-Schmidt Universität Hamburg, Germany): "Nearrings Of Mappings On Groups"
  5. Marco Buratti (Università degli studi di Perugia, Italy): "Not only chocolate"

Contributed talks

  1. Vito Abatangelo (Politecnico di Bari, Italy): "Large Arcs in Moulton Planes of Odd Order"
  2. Marien Abreu Labbate (Università degli Studi della Basilicata, Italy): "Irreducible pseudo 2--factor isomorphic cubic bipartite graphs"
  3. Angela Aguglia (Politecnico di Bari, Italy): "Intersections of Buekenhout-Metz unitals"
  4. Kiyoshi Ando (University of Electro-Communications, Japan): "The number of vertices of degree five in a contraction critically 5-connected graph"
  5. Gabriela Araujo-Pardo (Universidad Nacional Autónoma de México, México): "Small regular graphs as subgraphs of minimal cages"
  6. Robert Bailey (Carleton University, Canada): "Hamiltonian decompositions of complete hypergraphs"
  7. Camino Balbuena (Universitat Politècnica de Catalunya, Spain): "Small regular bipartite graphs of girth 8"
  8. Simeon Ball (Universitat Politècnica de Catalunya, Spain): "Punctured Combinatorial Nullstellensatze"
  9. John Bamberg (Ghent University, Belgium): "On Mathon's perp-system"
  10. Alberto Bersani (Università di Roma --- La Sapienza, Italy): "Reformed permutations in the game Mousetrap"
  11. Andrea Blunck (Universität Hamburg, Germany): "Clifford Parallelisms defined by Octonions"
  12. Mathieu Bogaerts (Université Libre de Bruxelles, Belgium): "Permutations Arrays and Isometries of Sym(n)"
  13. Arrigo Bonisoli (Università di Modena e Reggio Emilia, Italy): "On decomposing complete graphs into generalized Petersen graphs with some degree of symmetry"
  14. Simona Bonvicini (Università di Padova, Italy): "Decomposing complete graphs into matchings of fixed size under symmetry contraints"
  15. Ilaria Cardinali (University of Siena, Italy): "On the grassmann-module of symplectic dual polar spaces of rank 4 in characteristic 3"
  16. Raffaello Caserta (Università degli Studi di Palermo, Palermo, Italy): "Discovering finite A_l-left-loops"
  17. Martin Cera (Universidad de Sevilla, Spain): "Multicolor Ramsey number for cliques and stars"
  18. Nancy Clarke (Acadia University, Canada): "A New Cops And Robber Model"
  19. Pietro Codara (Università degli Studi di Milano, Italy): "A Combinatorial Expansion arising from Lukasiewicz Logic"
  20. Dean Crnkovic (University of Rijeka, Croatia): "Designs Constructed From Primitive Groups"
  21. Jan De Beule (Ghent University, Belgium): "Characterization of certain weighted t-fold blocking sets of PG(n,q), and an application"
  22. Bart De Bruyn (Ghent University, Belgium): "Classification results regarding hyperplanes of finite dual polar spaces of rank 3"
  23. Alice Devillers (Université Libre de Bruxelles, Belgium): "s_3-involution Graphs"
  24. Roberta Di Gennaro (Università degli Studi di Napoli Federico II, Italy): "A characterization of the family of external lines to a quadratic cone of PG(3,q), q odd"
  25. Ping Ding (Simon Fraser University Kamloops, Canada): "Monochromatic Representations Of Quadratic Polynomials"
  26. Giorgio Donati (Università degli Studi di Napoli Federico II, Italy): "On the intersection of a Hermitian curve with a conic"
  27. Rui Duarte (University of Aveiro, Portugal): "Hypermaps On The Double Torus With Large Automorphism Group"
  28. Nicola Durante (Università degli Studi di Napoli Federico II, Italy): "On the intersection of Hermitian surfaces"
  29. Gary Ebert (University of Delaware, U.S.A.): "Classification of Unitals in Regular Nearfield Planes"
  30. Yves Edel (Ghent University, Belgium): "A new construction for APN functions"
  31. Sergei Evdokimov (Steklov Institute of Mathematics, Russia): "Schur Rings Over A Galois Ring"
  32. Giovanni Falcone (Università di Palermo, Italy): "Boolean designs and the ``Picard group'' of a design"
  33. Daniela Ferrero (Texas State University, U.S.A.): "Connectivity and balance in line sigraphs and their generalizations"
  34. Dalibor Froncek (University of Minnesota Duluth, U.S.A.): "Decompositions of K_n and K_n,n into (0,j)-prisms"
  35. Martin Funk (Università della Basilicata, Italy): "On the Ubiquity and Utility of Z_mu--Schemes"
  36. Pedro Garcia-Vazquez (Universidad de Sevilla, Spain): "Topological bipartite graphs"
  37. Massimo Giulietti (Università degli Studi di Perugia, Italy): "Arcs in AG(2,q) determining few directions"
  38. Diego González-Moreno (Universitat Politècnica de Catalunya, Spain): "Connectivity Of Semiregular Cages"
  39. Catherine Greenhill (University of New South Wales, Australia): "Asymptotic enumeration of correlation-immune boolean functions"
  40. Anja Hallez (Ghent University, Belgium): "On small weight codewords of the functional codes arising from quadrics and hermitian varieties"
  41. Adriana Hansberg (RWTH Aachen, Germany): "On the p-domination number, the domination number and the cycle of length four"
  42. Suresh Hegde (National Institute of Technology Karnataka, India): "Graceful Directed Graphs"
  43. Ray Hill (University of Salford, United Kingdom): "Word Puzzles On Planes - A Novel Application Of Blocking Sets"
  44. James Hirschfeld (University of Sussex, United Kingdom): "Algebraic Curves With Many Points"
  45. Stephen Howe (University of New South Wales, Australia): "Domination Numbers Of Random r-in r-out Digraphs"
  46. Simon Huggenberger (Ghent University, Belgium): "Maximal strongly parapolar subspaces in point-line spaces related to Jordan pairs"
  47. Carlo Hämäläinen (Charles University, Czech Republic): "Latin bitrades and graph embeddings"
  48. Tamás Héger (Eötvös Loránd University, Budapest, Hungary): "On small regular graphs of girth 6, 8 and 12 arising from finite geometries"
  49. Leif Jørgensen (Aalborg University, Denmark): "Schur rings: splitting partial difference sets"
  50. Hermann Kautschitsch (Alpen-Adria Universität Klagenfurt, Austria): "Near-ring constructions by R-modules"
  51. Yulia Kempner (Holon Institute of Technology (HIT), Israel): "An Isometric Isomorphism Between Antimatroids And Poly-antimatroids"
  52. Gyorgy Kiss (Eötvös Loránd University, Budapest, Hungary): "On the spectrum of the sizes of semiovals in PG(2,q)"
  53. Andreas Klein (Ghent University, Belgium): "Small maximal partial spreads in classical finite polar spaces"
  54. Gabor Korchmaros (Università degli Studi della Basilicata, Italy): "Some new results on Pellegrino's arcs in rmPG(2,q)"
  55. Hans-Joachim Kroll (Technische Universität Muenchen, Germany): "A new construction of caps"
  56. Domenico Labbate (Politecnico di Bari, Italy): "Pseudo and Strongly Pseudo 2-factor Isomorphic Regular Graphs"
  57. Michel Lavrauw (Ghent University, Belgium): "The isomorphism classes of finite semifield planes."
  58. Håkan Lennerstad (Blekinge Institute of Technology, Sweden): "Sharper bounds on the minimal Euclidean distance for block codes by optimimizing neighbourhood metric"
  59. Curt Lindner (Auburn University, U.S.A.): "Almost Resolvable Cycle Systems - An Analogue of Hanani Triple Systems"
  60. Petr Lisonek (Simon Fraser University, Canada): "Towards Latin bitrades of genus 1"
  61. Ana Luzón (Universidad Politécnica de Madrid, Spain): "Riordan Arrays And The Reciprocation Of Series: Two Approaches."
  62. Giuseppe Marino (Università degli Studi di Napoli Federico II, Italy): "On semifields of order q^6"
  63. Giuseppe Mazzuoccolo (Università di Modena e Reggio Emilia, Italy): "The class of 2-factorizations of complete graphs is universal"
  64. Dragan Mašulovic (University of Novi Sad, Serbia): "On A Class Of Homomorphism-homogeneous Semilinear Spaces"
  65. Dirk Meierling (RWTH Aachen University, Germany): "Degree sequences in multigraphs"
  66. Viola Meszaros (University of Szeged, Hungary): "Long Alternating Paths"
  67. Jean-Luc Michel (Université Libre de Bruxelles, Belgium): "Simplicial chains and the tetrahelix"
  68. Salvatore Milici (Università di Catania, Italy): "Embedding of H-designs into G-designs"
  69. Rainer Mlitz (Technische Universität Wien, Austria): "On The Representation Of Matroids"
  70. Luis Pedro Montejano (Universitat Politècnica de Catalunya, Spain): "On partial 3-trees"
  71. Jamshid Moori (University of Kwazulu-Natal, South Africa): "Codes And Irreducible Modules Invariant Under Janko Group J1 Or J2"
  72. Beniamin Mounits (CWI - Centrum Voor Wiskunde En Informatica, The Netherlands): "Lower Bounds On The Minimum Average Distance Of Binary Codes"
  73. Lucia Moura (University of Ottawa, Canada): "Covering arrays avoiding forbidden configurations"
  74. Emanuele Munarini (Politecnico di Milano, Italy): "Skew Dyck paths and area"
  75. Vito Napolitano (Università della Basilicata, Italy): "An embedding result for a class of finite planar spaces"
  76. Deborah Oliveros (Universidad Nacional Autónoma de México, México): "The Graphicahedron: A generalization of the Permutahedron"
  77. Antonio M. Oller (Universidad de Zaragoza, Spain): "Counting Domino Trains"
  78. William Orrick (Indiana University, U.S.A.): "Hadamard matrices: classification by codes and switching"
  79. Fernanda Pambianco (Università degli Studi di Perugia, Italy): "Linear Covering Codes over Nonbinary Finite Fields"
  80. Daniel Panario (Carleton University, Canada): "Smallest components and restricted patterns in combinatorial decomposable structures"
  81. Anita Pasotti (Università degli Studi di Brescia, Italy): "Elementary abelian designs via the Theorem of Weil on multiplicative character sums"
  82. Stefano Pasotti (Università Cattolica, Italy): "Regular parallelisms in linear spaces"
  83. Mario Osvin Pavcevic (University of Zagreb, Croatia): "Design construction based on the Kramer-Mesner method improved by adding necessary conditions"
  84. Claudio Perelli Cippo (Poltecnico di Milano, Italy): "Order structures on permutations induced by codes"
  85. Gaetano Quattrocchi (Università di Catania, Italy): "Grooming for two-period optical networks"
  86. Joern Quistorff (FHTW Berlin - University of Applied Sciences, Germany): "Covering Radius Of Repetition Codes With Respect To The Lee Metric"
  87. Marija Rasajski (University of Belgrade, Serbia): "A class of maximal tricyclic reflexive graphs"
  88. Gloria Rinaldi (Università di Modena e Reggio Emilia, Italy): "A non-existence result on cyclic cycle decomposition of the cocktail party graph"
  89. Beatrice Ruini (Università di Modena e Reggio Emilia, Italy): "On the automorphic chromatic index of a graph"
  90. Jeroen Schillewaert (Ghent University, Belgium): "A characterisation of Veroneseans"
  91. Ron Shaw (University of Hull, United Kingdom): "Dual trivectors and their singular lines in PG(5,2)"
  92. Alessandro Siciliano (University of Basilicata, Italy): "Commuting polarities and maximal partial ovoids of H(4,q^2)"
  93. Angelo Sonnino (Università della Basilicata, Italy): "Computational results on k-arcs sharing exactly ½(q+3) points with a conic in the Desarguesian plane of odd order q"
  94. Fulvia Spaggiari (Università di Modena e Reggio Emilia, Italy): "Some questions on cyclically presented groups"
  95. Pablo Spiga (University of Padova, Italy): "On The Cayley Isomorphism Problem For Elementary Abelian Groups"
  96. Renzo Sprugnoli (Università di Firenze, Italy): "When a sum does not close"
  97. Heide Sticker (Ghent University, Belgium): "Enumeration of k-arcs in PG(2,q) using conic subsets"
  98. Koen Struyve (Ghent University, Belgium): "Twinnings of R-buildings"
  99. Peter Sziklai (Eötvös Loránd University, Budapest, Hungary): "Reconstructing matrices from submatrices"
  100. Agnese Ilaria Telloni (Università di Modena e Reggio Emilia, Italy): "Groups and Graphs of Some Combinatorial Manifolds"
  101. Beukje Temmermans (Ghent University, Belgium): "Collineations and dualities of partial geometries and their fixpoints"
  102. Koen Thas (Ghent University, Belgium): "Blueprint for the classification of transplantable Euclidean TI-domains in Kac theory"
  103. Vladimir Tonchev (Michigan Technological University, U.S.A.): "Quantum codes from caps"
  104. Tommaso Traetta (University of Perugia, Italy): "Some New Results On 1-rotational 2-factorization Of The Complete Graph"
  105. Rocco Trombetti (Università degli Studi di Napoli Federico II, Italy): "Semifields of type (q^2n,q^n,q^2,q^2,q), n odd"
  106. Morimasa Tsuchiya (Tokai University, Japan): "On upper bound graphs with graph operations"
  107. Juan Carlos Valenzuela (Universidad de Cadiz, Spain): "Upper bounds and new exact values for the order of bi-regular cages"
  108. Geertrui Van De Voorde (Ghent University, Belgium): "Partial covers of PG(n,q)"
  109. Andrea Vietri (Università di Roma --- La Sapienza, Italy): "Graceful labellings and symmetric functions"
  110. Rita Vincenti (Università degli Studi di Perugia, Italy): "Three-level secret sharing schemes from the twisted cubic"
  111. Mamoru Watanabe (Kurashiki University of Science and the Arts, Japan): "Which n times n checker boards with a missing square is possible to cover with straight k-omioes?"
  112. Heinrich Wefelscheid (University of Duisburg-Essen, Germany): "The Influence of Karzel's work on Nearfields"
  113. Marcel Wild (University of Stellenbosch, South Africa): "Generating all, or all maximum anticliques of a graph"
  114. Mieko Yamada (Kanazawa University, Japan): "Difference sets over Galois rings GR(2^n, s) for even n and even s"
  115. Emine Sule Yazici (Koc University, Turkey): "The full metamorphosis of lambda-fold block designs with block size four into lambda-fold kite systems"
  116. Norma Zagaglia (Politecnico di Milano, Italy): "Perfect Matchings of a Graph Associated with the Binary De Bruijn Digraph"
  117. Corrado Zanella (Università di Padova, Italy): "Linear line partitions"
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