Volume 25, Issue 4 (2018)

Generating Asymptotics for Factorially Divergent Sequences

Michael Borinsky

P4.1
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Reflexive Graphs with Near Unanimity but no Semilattice Polymorphisms

Mark Siggers

P4.2
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On Robust Colorings of Hamming-Distance Graphs

Isaiah Harney, Heide Gluesing-Luerssen

P4.3
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Cohomology Classes of Interval Positroid Varieties and a Conjecture of Liu

Brendan Pawlowski

P4.4
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Random Planar Maps and Graphs with Minimum Degree Two and Three

Marc Noy, Lander Ramos

P4.5
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Polynomiality of Certain Average Weights for Oscillating Tableaux

Guo-Niu Han, Huan Xiong

P4.6
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Counting Proper Colourings in 4-Regular Graphs via the Potts Model

Ewan Davies

P4.7
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- Source Code
Planar Transitive Graphs

Matthias Hamann

P4.8
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Coboundary Categories and Local Rules

Bruce W. Westbury

P4.9
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The Largest Pure Partial Planes of Order 6 Have Size 25

Yibo Gao

P4.10
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Constant Terms of Near-Dyson Polynomials

Alexey Gordeev

P4.11
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Linear Dependence Between Hereditary Quasirandomness Conditions

Xiaoyu He

P4.12
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The Matching Polynomials and Spectral Radii of Uniform Supertrees

Li Su, Liying Kang, Honghai Li, Erfang Shan

P4.13
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A New Perspective on the Average Mixing Matrix

Gabriel Coutinho, Chris Godsil, Krystal Guo, Hanmeng Zhan

P4.14
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On the Clique Number of a Strongly Regular Graph

Gary R. W. Greaves, Leonard H. Soicher

P4.15
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Flip Posets of Bruhat Intervals

Saúl A. Blanco

P4.16
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Shuffle-Compatible Permutation Statistics II: The Exterior Peak Set

Darij Grinberg

P4.17
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On the Diameter of Tree Associahedra

Jean Cardinal, Stefan Langerman, Pablo Pérez-Lantero

P4.18
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Unique Rectification in $d$-Complete Posets: Towards the $K$-Theory of Kac-Moody Flag Varieties

Rahul Ilango, Oliver Pechenik, Michael Zlatin

P4.19
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On the Schur Positivity of $\Delta_{e_2} e_n[X]$

Qiu Dun, Jeffrey B. Remmel, Emily Sergel, Guoce Xin

P4.20
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Using Symbolic Computation to Prove Nonexistence of Distance-Regular Graphs

Janoš Vidali

P4.21
Infinite Graphical Frobenius Representations

Mark E. Watkins

P4.22
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Bounds for Matchings in Nonabelian Groups

Will Sawin

P4.23
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Analogies between the Crossing Number and the Tangle Crossing Number

Robin Anderson, Shuliang Bai, Fidel Barrera-Cruz, Éva Czabarka, Giordano Da Lozzo, Natalie L. F. Hobson, Jephian C.-H. Lin, Austin Mohr, Heather C. Smith, László A. Székely, Hays Whitlatch

P4.24
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$\lambda$-Euler's Difference Table for Colored Permutations

Bin Han

P4.25
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Counting Partitions of a Fixed Genus

Robert Cori, Gábor Hetyei

P4.26
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On Upper Transversals in 3-Uniform Hypergraphs

Michael A. Henning, Anders Yeo

P4.27
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Inverse Perron Values and Connectivity of a Uniform Hypergraph

Changjiang Bu, Haifeng Li, Jiang Zhou

P4.28
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Density of Monochromatic Infinite Paths

Allan Lo, Nicolás Sanhueza-Matamala, Guanghui Wang

P4.29
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Transversals, Plexes, and Multiplexes in Iterated Quasigroups

Anna Taranenko

P4.30
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An Algebra Associated with a Flag in a Subspace Lattice over a Finite Field and the Quantum Affine Algebra

Yuta Watanabe

P4.31
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On the Union Complexity of Families of Axis-Parallel Rectangles with a Low Packing Number

Chaya Keller, Shakhar Smorodinsky

P4.32
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Path Choosability of Planar Graphs

Glenn G. Chappell, Chris Hartman

P4.33
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On the Number of Connected Sets in Bounded Degree Graphs

Kustaa Kangas, Petteri Kaski, Janne H. Korhonen, Mikko Koivisto

P4.34
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Uniquely $K_r^{(k)}$-Saturated Hypergraphs

András Gyárfás, Stephen G. Hartke, Charles Viss

P4.35
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Hamilton $\ell$-Cycles in Randomly Perturbed Hypergraphs

Andrew McDowell, Richard Mycroft

P4.36
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Random Numerical Semigroups and a Simplicial Complex of Irreducible Semigroups

Jesus De Loera, Christopher O'Neill, Dane Wilburne

P4.37
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A Sauer-Shelah-Perles Lemma for Sumsets

Zeev Dvir, Shay Moran

P4.38
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Degenerate Turán Problems for Hereditary Properties

Vladimir Nikiforov, Michael Tait, Craig Timmons

P4.39
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A New Lower Bound for the Size of an Affine Blocking Set

Maarten De Boeck, Geertrui Van de Voorde

P4.40
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$(k,\lambda)$-Anti-Powers and Other Patterns in Words

Amanda Burcroff

P4.41
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Cyclic Sieving, Necklaces, and Branching Rules Related to Thrall's Problem

Connor Ahlbach, Joshua P. Swanson

P4.42
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A Family of Partially Ordered Sets with Small Balance Constant

Evan Chen

P4.43
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Combinatorial Interpretations of the Kreweras Triangle in Terms of Subset Tuples

Ange Bigeni

P4.44
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Graph Families with Constant Distance Determinant

Yen-Jen Cheng, Jephian C.-H. Lin

P4.45
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Coloring Chains for Compression with Uncertain Priors

Noah Golowich

P4.46
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Enumerations, Forbidden Subgraph Characterizations, and the Split-Decomposition

Maryam Bahrani, Jérémie Lumbroso

P4.47
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Independent Sets in the Union of Two Hamiltonian Cycles

Ron Aharoni, Daniel Soltész

P4.48
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Bandwidth of Graphs Resulting from the Edge Clique Covering Problem

Konrad Engel, Sebastian Hanisch

P4.49
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Distribution of Coefficients of Rank Polynomials for Random Sparse Graphs

Dmitry Jakobson, Calum MacRury, Sergey Norin, Lise Turner

P4.50
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Boxicity, Poset Dimension, and Excluded Minors

Louis Esperet, Veit Wiechert

P4.51
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Random Kneser Graphs and Hypergraphs

Andrey Kupavskii

P4.52
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Theta-Vexillary Signed Permutations

Jordan Lambert

P4.53
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Measures of Edge-Uncolorability of Cubic Graphs

M. A. Fiol, G. Mazzuoccolo, E. Steffen

P4.54
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Minimal Obstructions for Partial Representations of Interval Graphs

Pavel Klavik, Maria Saumell

P4.55
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Clique Colourings of Geometric Graphs

Colin McDiarmid, Dieter Mitsche, Pawel Prałat

P4.56
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On Certain Combinatorial Expansions of the Legendre-Stirling Numbers

Shi-Mei Ma, Jun Ma, Yeong-Nan Yeh

P4.57
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Lozenge Tilings of a Halved Hexagon with an Array of Triangles Removed from the Boundary, Part II

Tri Lai

P4.58
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Hypergraph Coverings and their Zeta Functions

Deqiong Li, Yaoping Hou

P4.59
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Spectral and Combinatorial Properties of Some Algebraically Defined Graphs

Sebastian M. Cioabă, Felix Lazebnik, Shuying Sun

P4.60
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Ramsey-Turán Numbers for Semi-Algebraic Graphs

Jacob Fox, János Pach, Andrew Suk

P4.61
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Centroidal Localization Game

Bartłomiej Bosek, Przemysław Gordinowicz, Jarosław Grytczuk, Nicolas Nisse, Joanna Sokół, Małgorzata Śleszyńska-Nowak

P4.62
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Signed Cycle Double Covers

Lingsheng Shi, Zhang Zhang

P4.63
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A Two-Sided Analogue of the Coxeter Complex

T. Kyle Petersen

P4.64
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Partial Characterization of Graphs Having a Single Large Laplacian Eigenvalue

L. Emilio Allem, Antonio Cafure, Ezequiel Dratman, Luciano N. Grippo, Martín D. Safe, Vilmar Trevisan

P4.65
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Minimal Multiple Blocking Sets

Anurag Bishnoi, Sam Mattheus, Jeroen Schillewaert

P4.66
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