Volume 30, Issue 1 (2023)

Generalizing Cographs to 2-Cographs

James Oxley, Jagdeep Singh

P1.1
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Counting Baxter Matrices

George Spahn

P1.2
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Saturation for Small Antichains

Irina Ðanković, Maria-Romina Ivan

P1.3
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Rank-Metric Lattices

Giuseppe Cotardo, Alberto Ravagnani

P1.4
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Flagged Schur Polynomial Duality via a Lattice Path Bijection

Eoghan McDowell

P1.5
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Decompositions of Augmented Bergman Complexes

R. Amzi Jeffs

P1.6
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Spanning Configurations and Representation Stability

Brendan Pawlowski, Eric Ramos, Brendon Rhoades

P1.7
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Small Sets in Union-Closed Families

David Ellis, Maria-Romina Ivan, Imre Leader

P1.8
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Min-Cost-Flow Preserving Bijection Between Subgraphs and Orientations

Izhak Elmaleh, Ohad N. Feldheim

P1.9
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Bijection Between Increasing Binary Trees and Rook Placements on Double Staircases

Bishal Deb

P1.10
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The Matching Process and Independent Process in Random Regular Graphs and Hypergraphs

Deepak Bal, Patrick Bennett

P1.11
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Typical Values of Extremal-Weight Combinatorial Structures with Independent Symmetric Weights

Yun Cheng, Yixue Liu, Tomasz Tkocz, Albert Xu

P1.12
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Towards Lehel's Conjecture for 4-Uniform Tight Cycles

Allan Lo, Vincent Pfenninger

P1.13
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Hanani-Tutte for Radial Planarity II

Radoslav Fulek, Michael J. Pelsmajer, Marcus Schaefer

P1.14
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On Chromatic Symmetric Homology and Planarity of Graphs

Azzurra Ciliberti, Luca Moci

P1.15
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A Result on Large Induced Subgraphs with Prescribed Residues in Bipartite Graphs

Zach Hunter

P1.16
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Finding Large Expanders in Graphs: from Topological Minors to Induced Subgraphs

Baptiste Louf, Fiona Skerman

P1.17
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Long Induced Paths in Minor-Closed Graph Classes and Beyond

Claire Hilaire, Jean-Florent Raymond

P1.18
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Smaller Embeddings of Partial $k$-Star Decompositions

Ajani De Vas Gunasekara, Daniel Horsley

P1.19
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Spectral Extremal Graphs for Disjoint Cliques

Zhenyu Ni, Jing Wang, Liying Kang

P1.20
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On a Characterization of Lattice Cubes via Discrete Isoperimetric Inequalities

David Iglesias, Eduardo Lucas

P1.21
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The Equivalence of Two Inequalities for Quasisymmetric Designs

Andries Brouwer

P1.22
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Cooperative Colorings of Forests

Peter Bradshaw

P1.23
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Lenart's Bijection via Bumpless Pipe Dreams

Adam Gregory, Zachary Hamaker

P1.24
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A New Construction of Strongly Regular Graphs with Parameters of the Complement Symplectic Graph

Vladislav V. Kabanov

P1.25
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Enumeration of Generalized Dyck Paths Based on the Height of Down-Steps Modulo $k$

Clemens Heuberger, Sarah J. Selkirk, Stephan Wagner

P1.26
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On Permutations Avoiding Partially Ordered Patterns Defined by Bipartite Graphs

Sergey Kitaev, Artem Pyatkin

P1.27
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A Tableau Formula for Vexillary Schubert Polynomials in Type C

Tomoo Matsumura

P1.28
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The First Higher Stasheff-Tamari Orders are Quotients of the Higher Bruhat Orders

Nicholas J. Williams

P1.29
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Multitrees in Random Graphs

Alan Frieze, Wesley Pegden

P1.30
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Degree 2 Boolean Functions on Grassmann Graphs

Jan De Beule, Jozefien D'haeseleer, Ferdinand Ihringer, Jonathan Mannaert

P1.31
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Non-Empty Intersection of Longest Paths in $H$-Free Graphs

James A. Long Jr., Kevin G. Milans, Andrea Munaro

P1.32
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The Apparent Structure of Dense Sidon Sets

Sean Eberhard, Freddie Manners

P1.33
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Generalized Turán problems for $K_{2,t}$

Dániel Gerbner

P1.34
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Unbalanced Spanning Subgraphs in Edge Labeled Complete Graphs

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

P1.35
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A Characterization of Two-Dimensional Buchsbaum Matching Complexes

Bennet Goeckner, Fran Herr, Legrand Jones II, Rowan Rowlands

P1.36
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Constructions and Restrictions for Balanced Splittable Hadamard Matrices

Jonathan Jedwab, Shuxing Li, Samuel Simon

P1.37
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Graphs with at most one Generalized Cospectral Mate

Wei Wang, Wei Wang, Tao Yu

P1.38
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Stability of Woodall's Theorem and Spectral Conditions for Large Cycles

Binlong Li, Bo Ning

P1.39
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On Five Types of Crucial Permutations with Respect to Monotone Patterns

Sergey Avgustinovich, Sergey Kitaev, Anna Taranenko

P1.40
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A Bijective Proof of a Generalization of the Non-Negative Crank-Odd Mex Identity

Isaac Konan

P1.41
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Majority Edge-Colorings of Graphs

Felix Bock, Rafał Kalinowski, Johannes Pardey, Monika Pilśniak, Dieter Rautenbach, Mariusz Woźniak

P1.42
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On the Local and Global Mean Orders of Sub-$k$-Trees of $k$-Trees

Zuwen Luo, Kexiang Xu

P1.43
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Properly Colored Hamilton Cycles in Dirac-Type Hypergraphs

Sylwia Antoniuk, Nina Kamčev, Andrzej Ruciński

P1.44
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An Upper Bound for the Circumference of a 3-Connected Binary Matroid

Manoel Lemos, James Oxley

P1.45
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The Number of Quasi-Trees in Fans and Wheels

Criel Merino

P1.46
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A Homomorphic Polynomial for Oriented Graphs

Sandip Das, Sumitava Ghosh, Swathy Prabhu, Sagnik Sen

P1.47
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The Balancing Number and Generalized Balancing Number of Some Graph Classes

Antoine Dailly, Laura Eslava, Adriana Hansberg, Denae Ventura

P1.48
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On Davenport Constant of the Group $C_2^{r-1} \oplus C_{2k}$

Kevin Zhao

P1.49
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Doubled Patterns with Reversal and Square-Free Doubled Patterns

Antoine Domenech, Pascal Ochem

P1.50
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Subgraph Densities in $K_r$-Free Graphs

Andrzej Grzesik, Ervin Győri, Nika Salia, Casey Tompkins

P1.51
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Combinatorics on Bounded Free Motzkin Paths and its Applications

Hyunsoo Cho, JiSun Huh, Hayan Nam, Jaebum Sohn

P1.52
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Monochromatic Paths in 2-Edge-Coloured Graphs and Hypergraphs

Maya Stein

P1.53
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Balancing Connected Colourings of Graphs

Freddie Illingworth, Emil Powierski, Alex Scott, Youri Tamitegama

P1.54
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Junta Threshold for Low Degree Boolean Functions on the Slice

Yuval Filmus

P1.55
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Nonexistence of Almost Moore Digraphs of Degrees 4 and 5 with Self-Repeats

Nacho López, Arnau Messegué, Josep M. Miret

P1.56
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Small Graphs and Hypergraphs of Given Degree and Girth

Grahame Erskine, James Tuite

P1.57
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