Volume 33, Issue 4 (2026)

A Generalization of RSK to d-Complete Posets

Son Nguyen, Joseph Vulakh, Dora Woodruff

P4.1
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Generalized Ramsey Numbers via Conflict-Free Hypergraph Matchings

Natasha Morrison, Andrew Lane

P4.2
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Unavoidable Minors of Matroids with Minimum Cocircuit Size Four

Matthew Mizell, James Oxley

P4.3
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State Transfer in Discrete-Time Quantum Walks via Projected Transition Matrices

Krystal Guo, Vincent Schmeits

P4.4
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Rainbow Triangles and the Erdős-Hajnal Problem in Projective Geometries

Carolyn Chun, James Dylan Douthitt, Wayne Ge, Tony Huynh, Matthew E. Kroeker, Peter Nelson

P4.5
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Enumerative Chromatic Choosability

Sarah Allred, Jeffrey Allen Mudrock

P4.6
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The Two-Variable Hypergraph Tutte Polynomial via Embedding Activities and Computation-Tree Activities

Lilla Tóthmérész

P4.7
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Bounds on Treewidth via Excluding Disjoint Unions of Cycles

Meike Hatzel, Chun-Hung Liu, Bruce Reed, Sebastian Wiederrecht

P4.8
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Ultra Log-Concavity and Real-Rootedness of Dependence Polynomials

Yan-Ting Xie, Shou-Jun Xu

P4.9
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A Triangulation of the Flow Polytope of the Zigzag Graph

Rachel Brunner, Christopher R. H. Hanusa

P4.10
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How to Secure General Acceptance for a Matching? - Inverse Popular Matchings

Erika Bérczi-Kovács, Eszter Szabó

P4.11
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Boolean Combinations of Graphs

Sarosh Adenwalla, Samuel Braunfeld, John Sylvester, Viktor Zamaraev

P4.12
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A Note on Vertex-Critical Induced Subgraphs of Shift Graphs

Tomáš Kaiser, Matěj Stehlík, Riste Škrekovski, Bjarne Toft

P4.13
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Conjugating Full Cycles by Adjacent Transpositions: Diameter and Sorting Time

Ron M. Adin, Eli Bagno, Yuval Roichman

P4.14
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Bilateral Parking Procedures

Philippe Nadeau

P4.15
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Graph Powers of Groups

Gabe Cunningham, Igor Minevich

P4.16
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Perfect Codes in Cayley Graphs of Hajós Groups

Yusuf Hafidh, Binzhou Xia, Sanming Zhou

P4.17
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Hypergraph Turán Problem of the Generalized Triangle with Bounded Matching Number

Jian Wang, Wenbin Wang, Weihua Yang

P4.18
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Spectral Generalized Turán Problems for Expansion Hypergraphs

Zijuan Cheng, Yongchun Lu, Liying Kang

P4.19
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Det-Extremal Bipartite Graphs

Wei Li

P4.20
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On a $q$-Analogue of the Zeta Polynomial of Posets

Frédéric Chapoton

P4.21
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Translating Between the Representations of an Acyclic Convex Geometry of Bounded Degree

Oscar Defrain, Arthur Ohana, Simon Vilmin

P4.22
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Hook Immanantal Inequalities for Totally Nonnegative Matrices

Mark Skandera

P4.23
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Combinatorics of Generalized Orthogonal Polynomials of Type $R_{II}$

Jang Soo Kim, Minho Song

P4.24
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On the Minimum Number of Hamilton Cycles in Hamiltonian Threshold Graphs: A Simple Proof

Chengli Li, Feng Liu

P4.25
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Powers of Hamiltonian Cycles in Randomly Augmented Pósa-Seymour Graphs

Sylwia Antoniuk, Andrzej Dudek, Andrzej Ruciński

P4.26
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A Robust Bollobás-Nikiforov Bound for Graphs Close to Triangle-Free Graphs

Yong Lu

P4.27
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On Edge-Primitive $2$-Arc-Transitive (Bi-)Cayley Graphs

Hao Nan Chen, Jing Jian Li, Ji Cheng Ma, Hao Yu

P4.28
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A New Group in the Riordan Family of Matrix Groups: the Sprugnoli Group

Paul Barry

P4.29
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An Extended Generalization of RSK Correspondence via $A$ Type Quiver Representations

Benjamin Dequene

P4.30
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Proof of a Conjecture of Matherne, Morales, and Selover on Encodings of Unit Interval Orders

Félix Gélinas, Adrien Segovia, Hugh Thomas

P4.31
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Unexpectedly, a Symmetry on Unlabeled Graphs

Florian Fürnsinn, Moritz Gangl, Martin Rubey

P4.32
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Solving Tiling Enumeration Problems by Tensor Network Contractions

Kai Liang

P4.33
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Size of Multipartitions through Level-Rank Duality

Nicolas Jacon

P4.34
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Noncrossing Arc Diagrams of Type B

Emily Barnard, Nathan Reading, Ashley M. Tharp

P4.35
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