Volume 28, Issue 1 (2021)

Extremal Trees with Fixed Degree Sequence

Eric O. D. Andriantiana, Valisoa Razanajatovo Misanantenaina, Stephan Wagner

P1.1
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Conditions for a Bigraph to be Super-Cyclic

Alexandr Kostochka, Mikhail Lavrov, Ruth Luo, Dara Zirlin

P1.2
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On the Spectra of General Random Mixed Graphs

Dan Hu, Hajo Broersma, Jiangyou Hou, Shenggui Zhang

P1.3
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Avoidability of Palindrome Patterns

Pascal Ochem, Matthieu Rosenfeld

P1.4
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The Component Counts of Random Injections

Dudley Stark

P1.5
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A Polynomial Time Algorithm to Find the Star Chromatic Index of Trees

Behnaz Omoomi, Elham Roshanbin, Marzieh Vahid Dastjerdi

P1.6
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Extending Perfect Matchings to Hamiltonian Cycles in Line Graphs

Marién Abreu, John Baptist Gauci, Domenico Labbate, Giuseppe Mazzuoccolo, Jean Paul Zerafa

P1.7
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Display Sets of Normal and Tree-Child Networks

Janosch Döcker, Simone Linz, Charles Semple

P1.8
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Hirzebruch-Type Inequalities Viewed as Tools in Combinatorics

Piotr Pokora

P1.9
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Monochromatic Components in Edge-Coloured Graphs with Large Minimum Degree

Hannah Guggiari, Alex Scott

P1.10
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Non-Separating Planar Graphs

Hooman R. Dehkordi, Graham Farr

P1.11
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Root Cones and the Resonance Arrangement

Samuel C. Gutekunst, Karola Mészáros, T. Kyle Petersen

P1.12
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On the Size of $(K_t,\mathcal{T}_k)$-Co-Critical Graphs

Zi-Xia Song, Jingmei Zhang

P1.13
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Circuit Covers of Signed Eulerian Graphs

Bo Bao, Rong Chen, Genghua Fan

P1.14
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Classifications of $\Gamma$-Colored $d$-Complete Posets and Upper $P$-Minuscule Borel Representations

Michael C. Strayer

P1.15
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The Non-Commuting, Non-Generating Graph of a Nilpotent Group

Peter J. Cameron, Saul D. Freedman, Colva M. Roney-Dougal

P1.16
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Birational Rowmotion and Coxeter-Motion on Minuscule Posets

Soichi Okada

P1.17
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Towards Degree Distribution of a Duplication-Divergence Graph Model

Krzysztof Turowski, Wojciech Szpankowski

P1.18
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Graphs with no Induced $K_{2, t}$

Freddie Illingworth

P1.19
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Minimum-Weight Combinatorial Structures Under Random Cost-Constraints

Alan Frieze, Wesley Pegden, Gregory B. Sorkin, Tomasz Tkocz

P1.20
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The Threshold for the Full Perfect Matching Color Profile in a Random Coloring of Random Graphs

Debsoumya Chakraborti, Mihir Hasabnis

P1.21
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A Randomly Weighted Minimum Spanning Tree with a Random Cost Constraint

Alan Frieze, Tomasz Tkocz

P1.22
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All Minor-Minimal Apex Obstructions with Connectivity Two

Adam S. Jobson, André E. Kézdy

P1.23
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Limit Densities of Patterns in Permutation Inflations

Tanya Khovanova, Eric Zhang

P1.24
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The $k$-Cut Model in Deterministic and Random Trees

Gabriel Berzunza, Xing Shi Cai, Cecilia Holmgren

P1.25
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Many Cliques with Few Edges

Rachel Kirsch, A. J. Radcliffe

P1.26
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Prisoners, Rooms, and Light Switches

Daniel M. Kane, Scott Duke Kominers

P1.27
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Domino Tilings of Cylinders: Connected Components under Flips and Normal Distribution of the Twist

Nicolau C. Saldanha

P1.28
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Covering Minimal Separators and Potential Maximal Cliques in $P_t$-Free Graphs

Andrzej Grzesik, Tereza Klimošová, Marcin Pilipczuk, Michał Pilipczuk

P1.29
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An Introduction to Supersymmetric Cluster Algebras

Li Li, James Mixco, B. Ransingh, Ashish K. Srivastava

P1.30
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The Smallest Matroids with no Large Independent Flat

Peter Nelson, Sergey Norin

P1.31
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Inequalities for Doubly Nonnegative Functions

Alexander Sidorenko

P1.32
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The Size of the Giant Joint Component in a Binomial Random Double Graph

Mark Jerrum, Tamás Makai

P1.33
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Coloring the $n$-Smooth Numbers with $n$ Colors

Andrés Eduardo Caicedo, Thomas A. C. Chartier, Péter Pál Pach

P1.34
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Cycle Decompositions of Complete Digraphs

A. C. Burgess, P. Danziger, M. T. Javed

P1.35
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Hamiltonian Cycles in Tough $(P_2\cup P_3)$-Free Graphs

Songling Shan

P1.36
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Refined Counting of Core Partitions into $d$-Distinct Parts

Hannah E. Burson, Simone Sisneros-Thiry, Armin Straub

P1.37
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De Finetti Lattices and Magog Triangles

Andrew Beveridge, Ian Calaway, Kristin Heysse

P1.38
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Classification of Toric Log Del Pezzo Surfaces with Few Singular Points

Yusuke Suyama

P1.39
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Supersaturation, Counting, and Randomness in Forbidden Subposet Problems

Dániel Gerbner, Dániel T. Nagy, Balázs Patkós, Máté Vizer

P1.40
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Polynomially Bounding the Number of Minimal Separators in Graphs: Reductions, Sufficient Conditions, and a Dichotomy Theorem

Martin Milanič, Nevena Pivač

P1.41
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On Prime-Valent Symmetric Cayley Graphs of Finite Simple Groups

Jing Jian Li, Jicheng Ma

P1.42
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On the Strong Hanani-Tutte Theorem

Hooman R. Dehkordi, Graham Farr

P1.43
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Largest Component and Node Fault Tolerance for Grids

Jakub Przybyło, Andrzej Żak

P1.44
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Algebraic Properties of the Coordinate Ring of a Convex Polyomino

Claudia Andrei

P1.45
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On Ramsey-Minimal Infinite Graphs

Jordan Mitchell Barrett, Valentino Vito

P1.46
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On the Combinatorics of Symmetrized Poly-Bernoulli Numbers

Beáta Bényi, Toshiki Matsusaka

P1.47
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Uniquely $D$-Colourable Digraphs with Large Girth II: Simplification via Generalization

P. Mark Kayll, Esmaeil Parsa

P1.48
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Determining the Circular Flow Number of a Cubic Graph

Robert Lukoťka

P1.49
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Regularity and the Gorenstein property of $L$-convex Polyominoes

Viviana Ene, Jürgen Herzog, Ayesha Asloob Qureshi, Francesco Romeo

P1.50
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Shannon Capacity and the Categorical Product

Gábor Simonyi

P1.51
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Generalized Catalan Numbers from Hypergraphs

Paul E. Gunnells

P1.52
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Skeleton Ideals of Certain Graphs, Standard Monomials and Spherical Parking Functions

Chanchal Kumar, Gargi Lather, Sonica

P1.53
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$k$-Pop Stack Sortable Permutations and $2$-Avoidance

Murray Elder, Yoong Kuan Goh

P1.54
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Induced Ramsey Number for a Star Versus a Fixed Graph

Maria Axenovich, Izolda Gorgol

P1.55
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Symmetric Polynomials in the Symplectic Alphabet and the Change of Variables $z_j = x_j + x_j^{-1}$

Per Alexandersson, Luis Angel González-Serrano, Egor A. Maximenko, Mario Alberto Moctezuma-Salazar

P1.56
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On Self-Mullineux and Self-Conjugate Partitions

Ana Bernal

P1.57
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The Sprague-Grundy Functions of Saturations of Misère Nim

Yuki Irie

P1.58
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On the Maximum Number of Integer Colourings with Forbidden Monochromatic Sums

Hong Liu, Maryam Sharifzadeh, Katherine Staden

P1.59
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Some Instances of Homomesy Among Ideals of Posets

Shahrzad Haddadan

P1.60
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