Volume 25, Issue 2 (2018)

Sharp Lower Bounds on the Spectral Radius of Uniform Hypergraphs Concerning Degrees

Liying Kang, Lele Liu, Erfang Shan

P2.1
- PDF
Eigenvalue Bounds for the Signless $p$-Laplacian

Elizandro Max Borba, Uwe Schwerdtfeger

P2.2
- PDF
Residual $q$-Fano Planes and Related Structures

Tuvi Etzion, Niv Hooker

P2.3
- PDF
On the Poset and Asymptotics of Tesler Matrices

Jason O'Neill

P2.4
- PDF
Hamilton Circles in Cayley Graphs

Babak Miraftab, Tim Rühmann

P2.5
- PDF
On the Existence of Frobenius Digraphical Representations

Pablo Spiga

P2.6
- PDF
Even Subgraph Expansions for the Flow Polynomial of Planar Graphs with Maximum Degree at Most 4

Qingying Deng, Xian'an Jin, Fengming Dong, Eng Guan Tay

P2.7
- PDF
A New Approach for Examining $q$-Steiner Systems

Tuvi Etzion

P2.8
- PDF
Clique Trees of Infinite Locally Finite Chordal Graphs

Christoph Hofer-Temmel, Florian Lehner

P2.9
- PDF
Vertex-Transitive Direct Products of Graphs

Richard H. Hammack, Wilfried Imrich

P2.10
- PDF
Hypergraph Saturation Irregularities

Natalie C. Behague

P2.11
- PDF
On Vertex-Disjoint Paths in Regular Graphs

Jie Han

P2.12
- PDF
A New Upper Bound for Cancellative Pairs

Barnabás Janzer

P2.13
- PDF
Erdős-Ginzburg-Ziv Constants by Avoiding Three-Term Arithmetic Progressions

Jacob Fox, Lisa Sauermann

P2.14
- PDF
On the Smallest Snarks with Oddness 4 and Connectivity 2

Jan Goedgebeur

P2.15
- PDF
Bipartite Ramsey Numbers for Graphs of Small Bandwidth

Lili Shen, Qizhong Lin, Qinghai Liu

P2.16
- PDF
On Bergeron's Positivity Problem for $q$-Binomial Coefficients

Fabrizio Zanello

P2.17
- PDF
Subgraphs with Large Minimum $\ell$-Degree in Hypergraphs where Almost All $\ell$-Degrees are Large

Victor Falgas-Ravry, Allan Lo

P2.18
- PDF
Counting Compositions over Finite Abelian Groups

Zhicheng Gao, Andrew MacFie, Qiang Wang

P2.19
- PDF
Anagram-Free Graph Colouring

Tim E. Wilson, David R. Wood

P2.20
- PDF
A Generalization of Erdős' Matching Conjecture

Christos Pelekis, Israel Rocha

P2.21
- PDF
Some Variations on a Theme of Irina Mel'nichuk Concerning the Avoidability of Patterns in Strings of Symbols

George F. McNulty

P2.22
- PDF
Chromatic Index, Treewidth and Maximum Degree

Henning Bruhn, Laura Gellert, Richard Lang

P2.23
- PDF
Deferred On-Line Bipartite Matching

Jakub Kozik, Grzegorz Matecki

P2.24
- PDF
Semiregular Automorphisms in Vertex-Transitive Graphs of Order $3p^2$

Dragan Marušič

P2.25
- PDF
Edge Reconstruction of the Ihara Zeta Function

Gunther Cornelissen, Janne Kool

P2.26
- PDF
Avoiding Fractional Powers over the Natural Numbers

Lara Pudwell, Eric Rowland

P2.27
- PDF
An Easy Subexponential Bound for Online Chain Partitioning

Bartłomiej Bosek, H. A. Kierstead, Tomasz Krawczyk, Grzegorz Matecki, Matthew E. Smith

P2.28
- PDF
A Note on the Linear Cycle Cover Conjecture of Gyárfás and Sárközy

Beka Ergemlidze, Ervin Győri, Abhishek Methuku

P2.29
- PDF
Necessary Conditions for Schur-Maximality

Foster Tom, Stephanie van Willigenburg

P2.30
- PDF
Paths and Cycles in Random Subgraphs of Graphs with Large Minimum Degree

Stefan Ehard, Felix Joos

P2.31
- PDF
The Extremal Function and Colin de Verdière Graph Parameter

Rose McCarty

P2.32
- PDF
A New Upper Bound on the Game Chromatic Index of Graphs

Ralph Keusch

P2.33
- PDF
Defective 3-Paintability of Planar Graphs

Grzegorz Gutowski, Ming Han, Tomasz Krawczyk, Xuding Zhu

P2.34
- PDF
Convex Geometries are Extremal for the Generalized Sauer-Shelah Bound

Bogdan Chornomaz

P2.35
- PDF
Symmetries of Shamrocks II: Axial Shamrocks

Mihai Ciucu

P2.36
- PDF
Nonempty Intersection of Longest Paths in $2K_2$-Free Graphs

Gili Golan, Songling Shan

P2.37
- PDF
On Two-Sided Gamma-Positivity for Simple Permutations

Ron M. Adin, Eli Bagno, Estrella Eisenberg, Shulamit Reches, Moriah Sigron

P2.38
- PDF
Bispindles in Strongly Connected Digraphs with Large Chromatic Number

Nathann Cohen, Frédéric Havet, William Lochet, Raul Lopes

P2.39
- PDF
Flows in Signed Graphs with Two Negative Edges

Edita Rollová, Michael Schubert, Eckhard Steffen

P2.40
- PDF
Hultman Elements for the Hyperoctahedral Groups

Alexander Woo

P2.41
- PDF
On a Conjecture Regarding Permutations which Destroy Arithmetic Progressions

Mehtaab Sawhney, David Stoner

P2.42
- PDF
The Complexity of Computing the Cylindrical and the $t$-Circle Crossing Number of a Graph

Frank Duque, Hernán González-Aguilar, César Hernández-Vélez, Jesús Leaños, Carolina Medina

P2.43
- PDF
Toward the Schur Expansion of Macdonald Polynomials

Sami Assaf

P2.44
- PDF
Maximal Planar Subgraphs of Fixed Girth in Random Graphs

Manuel Fernández, Nicholas Sieger, Michael Tait

P2.45
- PDF
A Note on Not-4-List Colorable Planar Graphs

Margit Voigt, Arnfried Kemnitz

P2.46
- PDF
Binary Covering Arrays on Tournaments

Elizabeth Maltais, Lucia Moura, Mike Newman

P2.47
- PDF
On the Adjacency Spectra of Hypertrees

Gregory J. Clark, Joshua N. Cooper

P2.48
- PDF
On the Isomorphism Problem for Cayley Graphs of Abelian Groups whose Sylow Subgroups are Elementary Abelian or Cyclic

Ted Dobson

P2.49
- PDF
A Note on the Expected Length of the Longest Common Subsequences of two i.i.d. Random Permutations

Christian Houdré, Chen Xu

P2.50
- PDF
Proof of Chapoton's Conjecture on Newton Polygons of $q$-Ehrhart Polynomials

Jang Soo Kim, U-Keun Song

P2.51
- PDF
Homogeneous 3-Dimensional Permutation Structures

Samuel Braunfeld

P2.52
- PDF
Relaxations of GF(4)-Representable Matroids

Ben Clark, James Oxley, Stefan H.M. van Zwam

P2.53
- PDF
On Super-Strong Wilf Equivalence Classes of Permutations

Demetris Hadjiloucas, Ioannis Michos, Christina Savvidou

P2.54
- PDF
On Rainbow Hamilton Cycles in Random Hypergraphs

Andrzej Dudek, Sean English, Alan Frieze

P2.55
- PDF
Extending Perfect Matchings to Gray Codes with Prescribed Ends

Petr Gregor, Tomáš Novotný, Riste Škrekovski

P2.56
- PDF