Volume 29, Issue 2 (2022)

Spectral Radius, Edge-Disjoint Cycles and Cycles of the Same Length

Huiqiu Lin, Mingqing Zhai, Yanhua Zhao

P2.1
- PDF
Bell Numbers in Matsunaga's and Arima's Genjikō Combinatorics: Modern Perspectives and Local Limit Theorems

Xiaoling Dou, Hsien-Kuei Hwang, Chong-Yi Li

P2.2
- PDF
There Does Not Exist a Strongly Regular Graph with Parameters $(1911,270,105,27)$

Jack H. Koolen, Brhane Gebremichel

P2.3
- PDF
A $q$-Multisum Identity Arising from Finite Chain Ring Probabilities

Jehanne Dousse, Robert Osburn

P2.4
- PDF
On the Maximum of the Weighted Binomial Sum $2^{-r}\sum_{i=0}^r\binom{m}{i}$

S. P. Glasby, G. R. Paseman

P2.5
- PDF
Flip Graphs of Stacked and Flag Triangulations of the 2-Sphere

Benjamin A. Burton, Basudeb Datta, Jonathan Spreer

P2.6
- PDF
The Fractional Chromatic Number of Generalized Cones over Graphs

Jialu Zhu, Xuding Zhu

P2.7
- PDF
An Equivariant Quantum Pieri Rule for the Grassmannian on Cylindric Shapes

Anna Bertiger, Dorian Ehrlich, Elizabeth Milićević, Kaisa Taipale

P2.8
- PDF
Eigenvalues of Cayley Graphs

Xiaogang Liu, Sanming Zhou

P2.9
- PDF
Diagonal Hooks and a Schmidt-Type Partition Identity

Shane Chern, Ae Ja Yee

P2.10
- PDF
Combinatorial Perspectives on the Crank and Mex Partition Statistics

Brian Hopkins, James A. Sellers, Ae Ja Yee

P2.11
- PDF
On Bipartite Distance-Regular Cayley Graphs with Small Diameter

Edwin R. van Dam, Mojtaba Jazaeri

P2.12
- PDF
An Area-Depth Symmetric $q,t$-Catalan Polynomial

Joseph Pappe, Digjoy Paul, Anne Schilling

P2.13
- PDF
On a Huge Family of Non-Schurian Schur Rings

Akihide Hanaki, Takuto Hirai, Ilia Ponomarenko

P2.14
- PDF
Gamma-Positivity for a Refinement of Median Genocchi Numbers

Sen-Peng Eu, Tung-Shan Fu, Hsin-Hao Lai, Yuan-Hsun Lo

P2.15
- PDF
Hadamard Diagonalizable Graphs of Order at Most 36

Jane Breen, Steve Butler, Melissa Fuentes, Bernard Lidický, Michael Phillips, Alexander W. N. Riasanovsky, Sung-Yell Song, Ralihe R. Villagrán, Cedar Wiseman, Xiaohong Zhang

P2.16
- PDF
Chordal Directed Graphs Are Not $\chi$-Bounded

Pierre Aboulker, Nicolas Bousquet, Rémi de Verclos

P2.17
- PDF
On Sum Sets and Convex Functions

Sophie Stevens, Audie Warren

P2.18
- PDF
Positivity of Chromatic Symmetric Functions Associated with Hessenberg Functions of Bounce Number 3

Soojin Cho, Jaehyun Hong

P2.19
- PDF
On the Subspace Choosability in Graphs

Dror Chawin, Ishay Haviv

P2.20
- PDF
Forbidden Induced Pairs for Perfectness and $\omega$-Colourability of Graphs

Maria Chudnovsky, Adam Kabela, Binlong Li, Petr Vrána

P2.21
- PDF
Covering Symmetric Sets of the Boolean Cube by Affine Hyperplanes

S. Venkitesh

P2.22
- PDF
Degrees in Link Graphs of Regular Graphs

Itai Benjamini, John Haslegrave

P2.23
- PDF
Some Combinatorial Properties of Skew Jack Symmetric Functions

Paolo Bravi, Jacopo Gandini

P2.24
- PDF
Size and Structure of Large $(s,t)$-Union Intersecting Families

Ali Taherkhani

P2.25
- PDF
Trees Contained in Every Orientation of a Graph

Tássio Naia

P2.26
- PDF
Weakly Linked Embeddings of Pairs of Complete Graphs in $\mathbb{R}^3$

James Di, Erica Flapan, Spencer Johnson, Daniel Thompson, Christopher Tuffley

P2.27
- PDF
Integer Colorings with No Rainbow 3-Term Arithmetic Progression

Xihe Li, Hajo Broersma, Ligong Wang

P2.28
- PDF
Rowmotion Orbits of Trapezoid Posets

Quang Vu Dao, Julian Wellman, Calvin Yost-Wolff, Sylvester W. Zhang

P2.29
- PDF
Central Limit Theorem for the Largest Component of Random Intersection Graph

Liang Dong, Zhishui Hu

P2.30
- PDF
Moduli Spaces of Codimension-One Subspaces in a Linear Variety and their Tropicalization

Philipp Jell, Hannah Markwig, Felipe Rincón, Benjamin Schröter

P2.31
- PDF
On Maximal Sum-Free Sets in Abelian Groups

Nathanaël Hassler, Andrew Treglown

P2.32
- PDF
Tree/Endofunction Bijections and Concentration Inequalities

Steven Heilman

P2.33
- PDF
Note on the Number of Balanced Independent Sets in the Hamming Cube

Jinyoung Park

P2.34
- PDF
Turán Number of Disjoint Triangles in 4-Partite Graphs

Jie Han, Yi Zhao

P2.35
- PDF
Minimum Maximal Matchings in Cubic Graphs

Wouter Cames van Batenburg

P2.36
- PDF
Simplicial Dollar Game

Jesse Kim, David Perkinson

P2.37
- PDF
The Excluded Minors for Lattice Path Polymatroids

Joseph E. Bonin, Carolyn Chun, Tara Fife

P2.38
- PDF
A Note on Möbius Functions of Upho Posets

Sam Hopkins

P2.39
- PDF
Spectra of Weighted Uniform Hypertrees

Jiang-Chao Wan, Yi Wang, Fu-Tao Hu

P2.40
- PDF
An Extension of the Lindström-Gessel-Viennot Theorem

Yi-Lin Lee

P2.41
- PDF
Shattering and More: Extending the Complete Object

R. P. Anstee, N. A. Nikov

P2.42
- PDF
Acyclic, Star, and Injective Colouring: Bounding the Diameter

Christoph Brause, Petr Golovach, Barnaby Martin, Pascal Ochem, Daniël Paulusma, Siani Smith

P2.43
- PDF
Generalized Rainbow Turán Numbers

Dániel Gerbner, Tamás Mészáros, Abhishek Methuku, Cory Palmer

P2.44
- PDF
On Polynomials Counting Essentially Irreducible Maps

Timothy Budd

P2.45
- PDF
Reduced Word Enumeration, Complexity, and Randomization

Cara Monical, Benjamin Pankow, Alexander Yong

P2.46
- PDF
Concatenating Bipartite Graphs

Maria Chudnovsky, Patrick Hompe, Alex Scott, Paul Seymour, Sophie Spirkl

P2.47
- PDF
On the Trivial T-Module of a Graph

Blas Fernández, Štefko Miklavič

P2.48
- PDF
A Categorification for the Signed Chromatic Polynomial

Zhiyun Cheng, Ziyi Lei, Yitian Wang, Yanguo Zhang

P2.49
- PDF
Queen Domination of Even Square Boards

William D. Weakley

P2.50
- PDF
An Improved Planar Graph Product Structure Theorem

Torsten Ueckerdt, David R. Wood, Wendy Yi

P2.51
- PDF
Factorially Many Maximum Matchings Close to the Erdős-Gallai Bound

Stéphane Bessy, Johannes Pardey, Lucas Picasarri-Arrieta, Dieter Rautenbach

P2.52
- PDF
The Number of $k$-Dimensional Corner-Free Subsets of Grids

Younjin Kim

P2.53
- PDF
Dense Eulerian Graphs are $(1, 3)$-Choosable

Huajing Lu, Xuding Zhu

P2.54
- PDF
On Nilpotent Orientably-Regular Maps of Nilpotency Class $4$

Wenqin Xu, Shaofei Du, Jin Ho Kwak, Jian Lei, Kaina Shi

P2.55
- PDF
Extremal Graphs for a Spectral Inequality on Edge-Disjoint Spanning Trees

Sebastian M. Cioabă, Anthony Ostuni, Davin Park, Sriya Potluri, Tanay Wakhare, Wiseley Wong

P2.56
- PDF
Completely Regular Codes in Johnson and Grassmann Graphs with Small Covering Radii

Ivan Mogilnykh

P2.57
- PDF
Guessing Numbers and Extremal Graph Theory

Jo Martin, Puck Rombach

P2.58
- PDF