Volume 30, Issue 2 (2023)

Proof of a Conjecture Involving Derangements and Roots of Unity

Han Wang, Zhi-Wei Sun

P2.1
- PDF
Enumeration of Perfect Matchings of the Cartesian Products of Graphs

Wei Li, Yao Wang

P2.2
- PDF
Bounds on Half Graph Orders in Powers of Sparse Graphs

Marek Sokołowski

P2.3
- PDF
Perfect Colorings of the Infinite Square Grid: Coverings and Twin Colors

Denis S. Krotov

P2.4
- PDF
Betwixt and Between 2-Factor Hamiltonian and Perfect-Matching-Hamiltonian Graphs

Federico Romaniello, Jean Paul Zerafa

P2.5
- PDF
The $h$-Polynomial and the Rook Polynomial of some Polyominoes

Manoj Kummini, Dharm Veer

P2.6
- PDF
A New Feasibility Condition for the AT4 Family

Zheng-Jiang Xia, Jae-Ho Lee, Jack H. Koolen

P2.7
- PDF
Combinatorial Derived Matroids

Ragnar Freij-Hollanti, Relinde Jurrius, Olga Kuznetsova

P2.8
- PDF
On the $q$-Analogue of Pólya's Theorem

Alin Bostan, Sergey Yurkevich

P2.9
- PDF
Tight Bound for the Number of Distinct Palindromes in a Tree

Paweł Gawrychowski, Tomasz Kociumaka, Wojciech Rytter, Tomasz Waleń

P2.10
- PDF
Some Arithmetic Properties of Pólya's Urn

José L. Fernández, Pablo Fernández

P2.11
- PDF
A Splitter Theorem for Elastic Elements in 3-Connected Matroids

George Drummond, Charles Semple

P2.12
- PDF
Impartial Hypergraph Games

Nándor Sieben

P2.13
- PDF
Spectral Radius Conditions for the Rigidity of Graphs

Dandan Fan, Xueyi Huang, Huiqiu Lin

P2.14
- PDF
On Enumeration and Entropy of Ribbon Tilings

Yinsong Chen, Vladislav Kargin

P2.15
- PDF
On the Generating Function for Intervals in Young's Lattice

Faqruddin Ali Azam, Edward Richmond

P2.16
- PDF
Enumeration of Corner Polyhedra and 3-Connected Schnyder Labelings

Éric Fusy, Erkan Narmanli, Gilles Schaeffer

P2.17
- PDF
Ore- and Pósa-Type Conditions for Partitioning 2-Edge-Coloured Graphs into Monochromatic Cycles

Patrick Arras

P2.18
- PDF
Zero-Sum Squares in $\{-1, 1\}$-Matrices with Low Discrepancy

Tom Johnston

P2.19
- PDF
Infinite Families of Hypertopes from Centrally Symmetric Polytopes

Claudio Alexandre Piedade

P2.20
- PDF
A Note on Long Cycles in Sparse Random Graphs

Michael Anastos

P2.21
- PDF
Mixed Dimer Configuration Model in Type D Cluster Algebras

Gregg Musiker, Kayla Wright

P2.22
- PDF
On the Spectral Radius of Minimally 2-(Edge)-Connected Graphs with Given Size

Zhenzhen Lou, Gao Min, Qiongxiang Huang

P2.23
- PDF
Estimating Global Subgraph Counts by Sampling

Svante Janson, Valentas Kurauskas

P2.24
- PDF
The Park-Pham Theorem with Optimal Convergence Rate

Tolson Bell

P2.25
- PDF
A Cantor-Bendixson Rank for Siblings of Trees

Davoud Abdi

P2.26
- PDF
The Number of Occurrences of Patterns in a Random Tree or Forest Permutation

Svante Janson

P2.27
- PDF
The Complexity of the Matroid Homomorphism Problem

Cheolwon Heo, Hyobin Kim, Siggers Mark

P2.28
- PDF
Combinatorial Constructions of Generating Functions of Cylindric Partitions with Small Profiles into Unrestricted or Distinct Parts

Kağan Kurşungöz, Halime Ömrüuzun Seyrek

P2.29
- PDF
Generating $I$-Eigenvalue Free Threshold Graphs

Luiz Emilio Allem, Elismar R. Oliveira, Fernando Tura

P2.30
- PDF
Behaviour of the Normalized Depth Function

Antonino Ficarra, Jürgen Herzog, Takayuki Hibi

P2.31
- PDF
Characterizing Planar Tanglegram Layouts and Applications to Edge Insertion Problems

Kevin Liu

P2.32
- PDF
Generalized Riemann Functions, Their Weights, and the Complete Graph

Nicolas Folinsbee, Joel Friedman

P2.33
- PDF
Edge and Pair Queries-Random Graphs and Complexity

Dariusz Dereniowski, Przemysław Gordinowicz, Paweł Prałat

P2.34
- PDF
Turán Numbers and Anti-Ramsey Numbers for Short Cycles in Complete $3$-Partite Graphs

Chunqiu Fang, Ervin Győri, Chuanqi Xiao, Jimeng Xiao

P2.35
- PDF
Generalized Alder-Type Partition Inequalities

Liam Armstrong, Bryan Ducasse, Thomas Meyer, Holly Swisher

P2.36
- PDF
Induced Subgraphs and Path Decompositions

Robert Hickingbotham

P2.37
- PDF
Rooted Prism-Minors and Disjoint Cycles Containing a Specified Edge

J.P. Costalonga, T.J. Reid, H. Wu

P2.38
- PDF
An Algebraic Formulation of Hypergraph Colorings

Michael Krul, Luboš Thoma

P2.39
- PDF
On the Minimum Bisection of Random 3-Regular Graphs

Lyuben Lichev, Dieter Mitsche

P2.40
- PDF
Cyclic Descents, Matchings and Schur-Positivity

Ron M. Adin, Yuval Roichman

P2.41
- PDF
Induced Subgraphs and Tree Decompositions IV. (Even Hole, Diamond, Pyramid)-Free Graphs

Tara Abrishami, Maria Chudnovsky, Sepehr Hajebi, Sophie Spirkl

P2.42
- PDF
Maximal Degree Subposets of $\nu$-Tamari Lattices

Aram Dermenjian

P2.43
- PDF
The $h^*$-Polynomial of the Order Polytope of the Zig-Zag Poset

Jane Ivy Coons, Seth Sullivant

P2.44
- PDF
Perfect Matching Complexes of Honeycomb Graphs

Margaret Bayer, Marija Jelić Milutinović, Julianne Vega

P2.45
- PDF
On the Running Time of Hypergraph Bootstrap Percolation

Jonathan A. Noel, Arjun Ranganathan

P2.46
- PDF
On Counting Double Centralizers of Symmetric Groups

Zhipeng Lu

P2.47
- PDF
Towards $3n-4$ in groups of prime order

Vsevolod F. Lev, Oriol Serra

P2.48
- PDF
Hadamard Matrices related to Projective Planes

Hadi Kharaghani, Sho Suda

P2.49
- PDF
Solutions to Seven and a Half Problems on Tilings

Bojan Bašić, Aleksa Džuklevski, Anna Slivková

P2.50
- PDF
Random Cubic Planar Maps

Michael Drmota, Marc Noy, Clément Requilé, Juanjo Rué

P2.51
- PDF
Cyclic Products and Optimal Traps in Cyclic Birth and Death Chains

Mark Holmes, Alexander E. Holroyd, Alejandro Ramírez

P2.52
- PDF
How Many Cliques Can a Clique Cover Cover?

Pavel Shuldiner, R. Wayne Oldford

P2.53
- PDF
Monk's Rule for Demazure Characters of the General Linear Group

Sami Assaf, Danjoseph Quijada

P2.54
- PDF
A Tropical Count of Real Bitangents to Plane Quartic Curves

Alheydis Geiger, Marta Panizzut

P2.55
- PDF
On the Chromatic Number in the Stochastic Block Model

Mikhail Isaev, Mihyun Kang

P2.56
- PDF
Numerical Semigroups, Polyhedra, and Posets III: Minimal Presentations and Face Dimension

Tara Gomes, Christopher O'Neill, Eduardo Torres Davila

P2.57
- PDF