Volume 20, Issue 3 (2013)

Maximum Planar Subgraphs in Dense Graphs

Peter Allen, Jozef Skokan, Andreas Würfl

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Gromov Hyperbolicity in Strong Product Graphs

Walter Carballosa, Rocío M. Casablanca, Amauris de la Cruz, José M. Rodríguez

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Degree Distribution of an Inhomogeneous Random Intersection Graph

Mindaugas Bloznelis, Julius Damarackas

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Limits of Modified Higher $q,t$-Catalan Numbers

Kyungyong Lee, Li Li, Nicholas A Loehr

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Recognition and Characterization of Chronological Interval Digraphs

Sandip Das, Mathew Francis, Pavol Hell, Jing Huang

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A Bound on Permutation Codes

Jürgen Bierbrauer, Klaus Metsch

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An Identity Conjectured by Lacasse via the Tree Function

Helmut Prodinger

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$(2,m,n)$-groups with Euler characteristic equal to $-2^as^b$

Nick Gill

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Geometric Constructions for Symmetric 3-Configurations

Leah Wrenn Berman

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On the Independence Numbers of the Cubes of Odd Cycles

Tom Bohman, Ron Holzman, Venkatesh Natarajan

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Extensions to 2-Factors in Bipartite Graphs

Jennifer Vandenbussche, Douglas B. West

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A Plethysm Formula on the Characteristic Map of Induced Linear Characters from $U_n(\mathbb F_q)$ to $GL(\mathbb F_q)$

Zhi Chen

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The Number of Euler Tours of Random Directed Graphs

Páidí Creed, Mary Cryan

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Generalized Permutohedra, h-Vectors of Cotransversal Matroids and Pure O-Sequences

Suho Oh

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Balanced Vertex Decomposable Simplicial Complexes and their h-vectors

Jennifer Biermann, Adam Van Tuyl

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Symmetry in Gardens of Eden

Christiaan Hartman, Marijn J. H. Heule, Kees Kwekkeboom, Alain Noels

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Eigenvalue Pairing in the Response Matrix for a Class of Network Models with Circular Symmetry

Miriam Farber, Charles R Johnson, Wei Zhen

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A Characterization of Graphs by Codes from their Incidence Matrices

Peter Dankelmann, Jennifer D. Key, Bernardo G. Rodrigues

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An Inhomogeneous Lambda-Determinant

Philippe Di Francesco

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Regularity of Join-meet Ideals of Distributive Lattices

Viviana Ene, Ayesha Asloob Qureshi, Asia Rauf

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The Spectral Excess Theorem for Distance-Biregular Graphs.

Miquel Àngel Fiol

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The Combinatorics of Interval Vector Polytopes

Matthias Beck, Jessica De Silva, Gabriel Dorfsman-Hopkins, Joseph Pruitt, Amanda Ruiz

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Can Colour-Blind Distinguish Colour Palettes?

Rafał Kalinowski, Monika Pilśniak, Jakub Przybyło, Mariusz Woźniak

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Embedding Cycles in Finite Planes

Felix Lazebnik, Keith E. Mellinger, Oscar Vega

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A Note on Total and Paired Domination of Cartesian Product Graphs

K. Choudhary, S. Margulies, I. V. Hicks

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The Edit Distance Function and Symmetrization

Ryan R. Martin

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The Adjacency Matroid of a Graph

Lorenzo Traldi, Robert Brijder, Hendrik Jan Hoogeboom

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Greedy Trees, Subtrees and Antichains

Eric Ould Dadah Andriantiana, Stephan Wagner, Hua Wang

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Medial Symmetry Type Graphs

Isabel Hubard, María del Río Francos, Alen Orbanić, Tomaž Pisanski

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On Sumsets of Multisets in $\mathbb{Z}_p^m$

Kaisa Matomäki

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Knots in Collapsible and Non-Collapsible Balls

Bruno Benedetti, Frank H. Lutz

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Upper-Bounding the $k$-Colorability Threshold by Counting Covers

Amin Coja-Oghlan

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Involutions on Standard Young Tableaux and Divisors on Metric Graphs

Rohit Agrawal, Gregg Musiker, Vladimir Sotirov, Fan Wei

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Symmetric Polynomials and Symmetric Mean Inequalities

Karl Mahlburg, Clifford Smyth

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Integral Circulant Ramanujan Graphs of Prime Power Order

T. A. Le, J. W. Sander

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On the Size of Kakeya Sets in Finite Vector Spaces

Gohar Kyureghyan, Peter Müller, Qi Wang

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Coloring 2-Intersecting Hypergraphs

Lucas Colucci, András Gyárfás

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Intersecting $k$-Uniform Families Containing all the $k$-Subsets of a Given Set

Wei-Tian Li, Bor-Liang Chen, Kuo-Ching Huang, Ko-Wei Lih

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New Spectral Bounds on the Chromatic Number Encompassing all Eigenvalues of the Adjacency Matrix

Pawel Wocjan, Clive Elphick

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On the Relationship between Pipe Dreams and Permutation Words

Cameron Marcott

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From Heaps of Matches to the Limits of Computability

Urban Larsson, Johan Wästlund

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Product Dimension of Forests and Bounded Treewidth Graphs

L. Sunil Chandran, Rogers Mathew, Deepak Rajendraprasad, Roohani Sharma

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Enumerating Finite Racks, Quandles and Kei

Simon R. Blackburn

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Shattering, Graph Orientations, and Connectivity

László Kozma, Shay Moran

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Delay Colourings of Cubic Graphs

Agelos Georgakopoulos

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Nordhaus-Gaddum Theorem for the Distinguishing Chromatic Number

Karen L. Collins, Ann Trenk

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Self-Avoiding Walks and the Fisher Transformation

Geoffrey Grimmett, Zhongyang Li

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Oriented Hypergraphs: Introduction and Balance

Lucas J. Rusnak

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The Size of Edge-critical Uniquely 3-Colorable Planar Graphs

Naoki Matsumoto

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A New Statistic on the Hyperoctahedral Groups

Alexander Stasinski, Christopher Voll

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Chains of Length 2 in Fillings of Layer Polyominoes

Mitch Phillipson, Catherine H. Yan, Jean Yeh

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A Note on the Acquaintance Time of Random Graphs

William B. Kinnersley, Dieter Mitsche, Paweł Prałat

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Linked Partitions and Permutation Tableaux

William Y.C. Chen, Lewis H. Liu, Carol J. Wang

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Rational Associahedra and Noncrossing Partitions

Drew Armstrong, Brendon Rhoades, Nathan Williams

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A Note on Forbidding Clique Immersions

Matt DeVos, Jessica McDonald, Bojan Mohar, Diego Scheide

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Note on Nordhaus-Gaddum Problems for Colin de Verdière type Parameters

Wayne Barrett, Shaun M. Fallat, H. Tracy Hall, Leslie Hogben

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On the Characteristic Polynomial of $n$-Cayley Digraphs

Majid Arezoomand, Bijan Taeri

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On Wilf Equivalence for Alternating Permutations

Sherry H.F. Yan

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The Range of a Random Walk on a Comb

János Pach, Gábor Tardos

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