Volume 27, Issue 3 (2020)

Statistics on Partitions Arising from Seaweed Algebras

Vincent E. Coll Jr., Andrew W. Mayers, Nicholas W. Mayers

P3.1
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A Note on the Poljak-Rödl Function

Xuding Zhu

P3.2
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Bounded Degree Spanners of the Hypercube

Rajko Nenadov, Mehtab Sawhney, Benny Sudakov, Adam Zsolt Wagner

P3.3
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Slit-Slide-Sew Bijections for Bipartite and Quasibipartite Plane Maps

Jérémie Bettinelli

P3.4
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The Almost Intersection Property for Pairs of Matroids on Common Groundset

Nathan Bowler, Johannes Carmesin, Jerzy Wojciechowski, Shadisadat Ghaderi

P3.5
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Homomorphisms of Sparse Signed Graphs

Clément Charpentier, Reza Naserasr, Éric Sopena

P3.6
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Mutually Orthogonal Binary Frequency Squares

Thomas Britz, Nicholas J. Cavenagh, Adam Mammoliti, Ian M. Wanless

P3.7
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Zeta Functions with Respect to General Coined Quantum Walk of Periodic Graphs

Takashi Komatsu, Norio Konno, Iwao Sato

P3.8
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Berge Cycles in Non-Uniform Hypergraphs

Zoltán Füredi, Alexandr Kostochka, Ruth Luo

P3.9
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Freeness of Hyperplane Arrangements between Boolean Arrangements and Weyl Arrangements of Type $ B_{\ell} $

Michele Torielli, Shuhei Tsujie

P3.10
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Circuit-Difference Matroids

George Drummond, Tara Fife, Kevin Grace, James Oxley

P3.11
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The Asymptotic Induced Matching Number of Hypergraphs: Balanced Binary Strings

Srinivasan Arunachalam, Péter Vrana, Jeroen Zuiddam

P3.12
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On the 486-Vertex Distance-Regular Graphs of Koolen-Riebeek and Soicher

Robert F. Bailey, Daniel R. Hawtin

P3.13
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The Absolute Orders on the Coxeter Groups $A_n$ and $B_n$ are Sperner

Lawrence H. Harper, Gene B. Kim, Neal Livesay

P3.14
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Crystal Structures for Double Stanley Symmetric Functions

Graham Hawkes

P3.15
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$S$-Hypersimplices, Pulling Triangulations, and Monotone paths

Sebastian Manecke, Raman Sanyal, Jeonghoon So

P3.16
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Pure $\mathcal{O}$-Sequences arising from $2$-Dimensional PS Ear-Decomposable Simplicial Complexes

Steven Klee, Brian Nugent

P3.17
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Rainbow Matchings of size $m$ in Graphs with Total Color Degree at least $2mn$

Jürgen Kritschgau

P3.18
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Counting Triangles in Power-Law Uniform Random Graphs

Pu Gao, Remco van der Hofstad, Angus Southwell, Clara Stegehuis

P3.19
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Gamma Positivity of the Descent Based Eulerian Polynomial in Positive Elements of Classical Weyl Groups

Hiranya Kishore Dey, Sivaramakrishnan Sivasubramanian

P3.20
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Translation Hyperovals and $\mathbb{F}_2$-Linear Sets of Pseudoregulus Type

Jozefien D'haeseleer, Geertrui Van de Voorde

P3.21
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Exact Minimum Codegree Thresholds for $K_4^-$-Covering and $K_5^-$-Covering

Lei Yu, Xinmin Hou, Yue Ma, Boyuan Liu

P3.22
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Sorting Permutations with Fixed Pinnacle Set

Irena Rusu

P3.23
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A Combinatorial Model for the Decomposition of Multivariate Polynomial Rings as $S_n$-Modules

Rosa Orellana, Michael Zabrocki

P3.24
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Covers, Orientations and Factors

Péter Csikvári, András Imolay

P3.25
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Delay Colouring in Quartic Graphs

Katherine Edwards, W. Sean Kennedy

P3.26
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The $1/k$-Eulerian Polynomials of Type $B$

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

P3.27
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Diameter and Stationary Distribution of Random $r$-Out Digraphs

Louigi Addario-Berry, Borja Balle, Guillem Perarnau

P3.28
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Two-Dimensional Partial Cubes

Victor Chepoi, Kolja Knauer, Manon Philibert

P3.29
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Edge-Distinguishing of Star-Free Graphs

Aleksandra Gorzkowska, Ernest Kargul, Szymon Musiał, Katarzyna Pal

P3.30
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$4$-Colouring of Generalized Signed Planar Graphs

Yiting Jiang, Xuding Zhu

P3.31
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Sorting with Pattern-Avoiding Stacks: The 132-Machine

Giulio Cerbai, Anders Claesson, Luca Ferrari, Einar Steingrímsson

P3.32
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Linked Partition Ideals, Directed Graphs and $q$-Multi-Summations

Shane Chern

P3.33
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Grossberg–Karshon Twisted Cubes and Hesitant Jumping Walk Avoidance

Eunjeong Lee

P3.34
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A Bijective Proof of the ASM Theorem, Part I: The Operator Formula

Ilse Fischer, Matjaž Konvalinka

P3.35
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A Recursive Construction for Skew Hadamard Difference Sets

Koji Momihara

P3.36
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Macdonald Polynomials and Chromatic Quasisymmetric Functions

James Haglund, Andrew Timothy Wilson

P3.37
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On Local Packings of the Cross-Polytope

Ji Hoon Chun

P3.38
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A Dirac-type Theorem for Berge Cycles in Random Hypergraphs

Dennis Clemens, Julia Ehrenmüller, Yury Person

P3.39
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Average Betti Numbers of Induced Subcomplexes in Triangulations of Manifolds

Giulia Codenotti, Jonathan Spreer, Francisco Santos

P3.40
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Convexity in Ordered Matroids and the Generalized External Order

Bryan R. Gillespie

P3.41
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Avoiding 5/4-Powers on the Alphabet of Nonnegative Integers

Eric Rowland, Manon Stipulanti

P3.42
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Another Approach to Non-Repetitive Colorings of Graphs of Bounded Degree

Matthieu Rosenfeld

P3.43
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Hidden Symmetries of Weighted Lozenge Tilings

Igor Pak, Fedor Petrov

P3.44
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Permutations Avoiding a Simsun Pattern

Marilena Barnabei, Flavio Bonetti, Niccolò Castronuovo, Matteo Silimbani

P3.45
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Extendable Shellability for $d$-Dimensional Complexes on $d+3$ Vertices

Jared Culbertson, Anton Dochtermann, Dan P. Guralnik, Peter F. Stiller

P3.46
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Codegree Threshold for Tiling Balanced Complete $3$-Partite $3$-Graphs and Generalized $4$-Cycles

Xinmin Hou, Boyuan Liu, Yue Ma

P3.47
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A Degree Sequence Version of the Kühn–Osthus Tiling Theorem

Joseph Hyde, Andrew Treglown

P3.48
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Restricted Online Ramsey Numbers of Matchings and Trees

Joseph Briggs, Christopher Cox

P3.49
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Level Algebras and $\mathbf {s}$-Lecture Hall Polytopes

Florian Kohl, McCabe Olsen

P3.50
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Quantifying Noninvertibility in Discrete Dynamical Systems

Colin Defant, James Propp

P3.51
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Infinite Latin Squares: Neighbor Balance and Orthogonality

Anthony B. Evans, Gage N. Martin, Kaethe Minden, M. A. Ollis

P3.52
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Chromatic Vertex Folkman Numbers

Xiaodong Xu, Meilian Liang, Stanisław P. Radziszowski

P3.53
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Frameworks for Two-Dimensional Keller Maps

Alexander Borisov

P3.54
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On Graphs whose Orientations are Determined by their Hermitian Spectra

Yi Wang, Bo-Jun Yuan

P3.55
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Optimal Play for Multiple Lottery Wins

Richard Stong, Skip Garibaldi

P3.56
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Fast Strategies in Waiter-Client Games

Dennis Clemens, Pranshu Gupta, Fabian Hamann, Alexander Haupt, Mirjana Mikalački, Yannick Mogge

P3.57
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Hat Guessing Numbers of Degenerate Graphs

Xiaoyu He, Ray Li

P3.58
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Some Properties of the $k$-bonacci Words on Infinite Alphabet

Narges Ghareghani, Morteza Mohammad-Noori, Pouyeh Sharifani

P3.59
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Lozenge Tiling Function Ratios for Hexagons with Dents on Two Sides

Daniel Condon

P3.60
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On Arithmetic Progressions in Symmetric Sets in Finite Field Model

Jan Hązła

P3.61
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The Average Distance and the Diameter of Dense Random Regular Graphs

Nobutaka Shimizu

P3.62
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