Table of Contents
Research Papers
| On a Class of Hyperplanes of the Symplectic and Hermitian Dual Polar Spaces | |
| Bart De Bruyn | R1 |
| Minimal Percolating Sets in Bootstrap Percolation | |
| Robert Morris | R2 |
| $k$-Cycle Free One-Factorizations of Complete Graphs | |
| Mariusz Meszka | R3 |
| Lower Bounds for the Size of Random Maximal $H$-Free Graphs | |
| Guy Wolfovitz | R4 |
| Consistent Cycles in $1\over2$-Arc-Transitive Graphs | |
| Marko Boben, Štefko Miklavič, Primož Potočnik | R5 |
| A Note on Commuting Graphs for Symmetric Groups | |
| C. Bates, D. Bundy, S. Hart, P. Rowley | R6 |
| Repetition Number of Graphs | |
| Yair Caro, Douglas B. West | R7 |
| The Block Connectivity of Random Trees | |
| Andrew R. A. McGrae, Michele Zito | R8 |
| Ternary Linear Codes and Quadrics | |
| Yuri Yoshida, Tatsuya Maruta | R9 |
| On the Locality of the Prüfer Code | |
| Craig Lennon | R10 |
| Balanced Online Ramsey Games in Random Graphs | |
| Anupam Prakash, Reto Spöhel, Henning Thomas | R11 |
| Littlewood–Richardson Coefficients and Integrable Tilings | |
| Paul Zinn-Justin | R12 |
| Comultiplication Rules for the Double Schur Functions and Cauchy Identities | |
| A. I. Molev | R13 |
| On the Monochromatic Schur Triples Type Problem | |
| Thotsaporn "Aek" Thanatipanonda | R14 |
| The Complexity of Constructing Gerechte Designs | |
| E. R. Vaughan | R15 |
| An Alternative Definition of the Notion Valuation in the Theory of Near Polygons | |
| Bart De Bruyn | R16 |
| Automorphism Groups of Wreath Product Digraphs | |
| Edward Dobson, Joy Morris | R17 |
| Semiaffine Spaces | |
| Hendrik Van Maldeghem | R18 |
| Reconstructing Permutations from Cycle Minors | |
| Maria Monks | R19 |
| On a Problem of Marco Buratti | |
| Peter Horak, Alexander Rosa | R20 |
| A Semigroup Approach to Wreath-Product Extensions of Solomon's Descent Algebras | |
| Samuel K. Hsiao | R21 |
| The $\{4, 5\}$ Isogonal Sponges on the Cubic Lattice | |
| Steven B. Gillispie, Branko Grünbaum | R22 |
| Restricting Supercharacters of the Finite Group of Unipotent Uppertriangular Matrices | |
| Nathaniel Thiem, Vidya Venkateswaran | R23 |
| Generation of Optimal Packings from Optimal Packings | |
| Thierry Gensane | R24 |
| Restrictions and Generalizations on Comma-Free Codes | |
| Alexander L. Churchill | R25 |
| Reachability Relations and the Structure of Transitive Digraphs | |
| Norbert Seifter, Vladimir I. Trofimov | R26 |
| Independence Number of 2-Factor-Plus-Triangles Graphs | |
| Jennifer Vandenbussche, Douglas B. West | R27 |
| On Two Problems Regarding the Hamiltonian Cycle Game | |
| Dan Hefetz, Sebastian Stich | R28 |
| On the First Occurrence of Strings | |
| Robert W. Chen, Burton Rosenberg | R29 |
| Bartholdi Zeta Functions of Fractal Graphs | |
| Iwao Sato | R30 |
| Coverings, Laplacians, and Heat Kernels of Directed Graphs | |
| Clara E. Brasseur, Ryan E. Grady, Stratos Prassidis | R31 |
| Enumeration of Derangements with Descents in Prescribed Positions | |
| Niklas Eriksen, Ragnar Freij, Johan Wästlund | R32 |
| Spectral Saturation: Inverting the Spectral Turán Theorem | |
| Vladimir Nikiforov | R33 |
| The Existence of FGDRP$(3,g^u)'$s | |
| Jie Yan, Chengmin Wang | R34 |
| Clique-Width and the Speed of Hereditary Properties | |
| Peter Allen, Vadim Lozin, Michaël Rao | R35 |
| Optimal Betti Numbers of Forest Ideals | |
| Michael Goff | R36 |
| Efficient Counting and Asymptotics of $k$-Noncrossing Tangled Diagrams | |
| William Y. C. Chen, Jing Qin, Christian M. Reidys, Doron Zeilberger | R37 |
| Discrete Morse Inequalities on Infinite Graphs | |
| Rafael Ayala, Luis M. Fernández, José A. Vilches | R38 |
| Fixing Numbers of Graphs and Groups | |
| Courtney R. Gibbons, Joshua D. Laison | R39 |
| Topological Circles and Euler Tours in Locally Finite Graphs | |
| Agelos Georgakopoulos | R40 |
| The Alternating Sign Matrix Polytope | |
| Jessica Striker | R41 |
| Near Threshold Graphs | |
| Steve Kirkland | R42 |
| A Graph-Theoretic Method for Choosing a Spanning Set for a Finite-Dimensional Vector Space, with Applications to the Grossman-Larson-Wright Module and the Jacobian Conjecture | |
| Dan Singer | R43 |
| Rate of Convergence of the Short Cycle Distribution in Random Regular Graphs Generated by Pegging | |
| Pu Gao, Nicholas Wormald | R44 |
| Crossings, Colorings, and Cliques | |
| Michael O. Albertson, Daniel W. Cranston, Jacob Fox | R45 |
| Random Even Graphs | |
| Geoffrey Grimmett, Svante Janson | R46 |
| On $k$-Walk-Regular Graphs | |
| C. Dalfó, M. A. Fiol, E. Garriga | R47 |
| Geometrically Constructed Bases for Homology of Non-Crossing Partition Lattices | |
| Aisling Kenny | R48 |
| The Number of Elements in the Mutation Class of a Quiver of Type $D_n$ | |
| Aslak Bakke Buan, Hermund André Torkildsen | R49 |
| Labeled Factorization of Integers | |
| Augustine O. Munagi | R50 |
| A Rainbow $k$-Matching in the Complete Graph with $r$ Colors | |
| Shinya Fujita, Atsushi Kaneko, Ingo Schiermeyer, Kazuhiro Suzuki | R51 |
| Pfaffian Orientation and Enumeration of Perfect Matchings for some Cartesian Products of Graphs | |
| Feng-Gen Lin, Lian-Zhu Zhang | R52 |
| Semifields in Class ${\cal F}_4^{(a)}$ | |
| Gary Ebert, Giuseppe Marino, Olga Polverino, Rocco Trombetti | R53 |
| The Maximum of the Maximum Rectilinear Crossing Numbers of $d$-Regular Graphs of Order $n$ | |
| Matthew Alpert, Elie Feder, Heiko Harborth | R54 |
| Scheduling Partial Round Robin Tournaments Subject to Home Away Pattern Sets | |
| Kenji Kashiwabara | R55 |
| On the Total Weight of Weighted Matchings of Segment Graphs | |
| Thomas Stoll, Jiang Zeng | R56 |
| Products of All Elements in a Loop and a Framework for Non-Associative Analogues of the Hall-Paige Conjecture | |
| Kyle Pula | R57 |
| Wilf-Equivalence on $k$-ary Words, Compositions, and Parking Functions | |
| Vít Jelínek, Toufik Mansour | R58 |
| Small Maximal Sum-Free Sets | |
| Michael Giudici, Sarah Hart | R59 |
| Counting Nondecreasing Integer Sequences that Lie Below a Barrier | |
| Robin Pemantle, Herbert S. Wilf | R60 |
| Multipartite Separability of Laplacian Matrices of Graphs | |
| Chai Wah Wu | R61 |
| Hook Length Formulas for Trees by Han's Expansion | |
| William Y.C. Chen, Oliver X.Q. Gao, Peter L. Guo | R62 |
| Enumerating Permutations that Avoid Three Term Arithmetic Progressions | |
| Arun Sharma | R63 |
| Evaluating a Weighted Graph Polynomial for Graphs of Bounded Tree-Width | |
| S. D. Noble | R64 |
| Graceful Tree Conjecture for Infinite Trees | |
| Tsz Lung Chan, Wai Shun Cheung, Tuen Wai Ng | R65 |
| Maximum Exponent of Boolean Circulant Matrices with Constant Number of Nonzero Entries in their Generating Vector | |
| M. I. Bueno, S. Furtado, N. Sherer | R66 |
| Lattice Paths, Sampling Without Replacement, and Limiting Distributions | |
| M. Kuba, A. Panholzer, H. Prodinger | R67 |
| Face Vectors of Two-Dimensional Buchsbaum Complexes | |
| Satoshi Murai | R68 |
| Maximal Flat Antichains of Minimum Weight | |
| Martin Grüttmüller, Sven Hartmann, Thomas Kalinowski, Uwe Leck, Ian T. Roberts | R69 |
| A Normalization Formula for the Jack Polynomials in Superspace and an Identity on Partitions | |
| Luc Lapointe, Yvan Le Borgne, Philippe Nadeau | R70 |
| Chromatic Number for a Generalization of Cartesian Product Graphs | PDF COMMENT |
| Daniel Král', Douglas B. West | R71 |
| Counting Abelian Squares | PDF COMMENT |
| L. B. Richmond, Jeffrey Shallit | R72 |
| A Reformulation of Matrix Graph Grammars with Boolean Complexes | |
| Pedro Pablo Pérez Velasco, Juan de Lara | R73 |
| Certificates of Factorisation for Chromatic Polynomials | |
| Kerri Morgan, Graham Farr | R74 |
| Certificates of Factorisation for a Class of Triangle-Free Graphs | |
| Kerri Morgan, Graham Farr | R75 |
| Distinguishing Chromatic Numbers of Bipartite Graphs | |
| C. Laflamme, K. Seyffarth | R76 |
| Mr. Paint and Mrs. Correct | |
| Uwe Schauz | R77 |
| A $q$-Analogue of de Finetti's Theorem | |
| Alexander Gnedin, Grigori Olshanski | R78 |
| Combinatorial Necklace Splitting | |
| Dömötör Pálvölgyi | R79 |
| The Laplacian Spread of Tricyclic Graphs | |
| Yanqing Chen, Ligong Wang | R80 |
| Maximum Multiplicity of a Root of the Matching Polynomial of a Tree and Minimum Path Cover | |
| Cheng Yeaw Ku, K. B. Wong | R81 |
| Updown Numbers and the Initial Monomials of the Slope Variety | |
| Jeremy L. Martin, Jennifer D. Wagner | R82 |
| Some Families of Orthogonal Polynomials of a Discrete Variable and their Applications to Graphs and Codes | |
| M. Cámara, J. Fàbrega, M. A. Fiol, E. Garriga | R83 |
| Properties Determined by the Ihara Zeta Function of a Graph | |
| Yaim Cooper | R84 |
| Anti-Ramsey Numbers for Graphs with Independent Cycles | |
| Zemin Jin, Xueliang Li | R85 |
| Squishing Dimers on the Hexagon Lattice | |
| Ben Young | R86 |
| Spherical f-Tilings by Scalene Triangles and Isosceles Trapezoids III | |
| Catarina P. Avelino, Altino F. Santos | R87 |
| Bounds on the Distinguishing Chromatic Number | |
| Karen L. Collins, Mark Hovey, Ann N. Trenk | R88 |
| A Dual of the Rectangle-Segmentation Problem for Binary Matrices | |
| Thomas Kalinowski | R89 |
| An Edge-Minimization Problem for Regular Polygons | |
| Ralph H. Buchholz, Warwick de Launey | R90 |
| Saturation Numbers for Trees | |
| Jill Faudree, Ralph J. Faudree, Ronald J. Gould, Michael S. Jacobson | R91 |
| Defective Choosability of Graphs without Small Minors | |
| Rupert G. Wood, Douglas R. Woodall | R92 |
| Almost All Trees have an Even Number of Independent Sets | |
| Stephan G. Wagner | R93 |
| Some Results on Chromatic Polynomials of Hypergraphs | |
| Manfred Walter | R94 |
| Hurwitz Equivalence in Tuples of Dihedral Groups, Dicyclic Groups, and Semidihedral Groups | |
| Charmaine Sia | R95 |
| Locally Primitive Normal Cayley Graphs of Metacyclic Groups | |
| Jiangmin Pan | R96 |
| Subsequence Sums of Zero-sum-free Sequences | |
| Pingzhi Yuan | R97 |
| Positivity in Coefficient-Free Rank Two Cluster Algebras | |
| G. Dupont | R98 |
| Profiles of Permutations | |
| Michael Lugo | R99 |
| The Inverse Erdős-Heilbronn Problem | |
| Van H. Vu, Philip Matchett Wood | R100 |
| Permutation Statistics and $q$-Fibonacci Numbers | |
| Adam M. Goyt, David Mathisen | R101 |
| Tight Bounds for Quasirandom Rumor Spreading | |
| Spyros Angelopoulos, Benjamin Doerr, Anna Huber, Konstantinos Panagiotou | R102 |
| Noncommutative determinants, Cauchy–Binet formulae, and Capelli-type identities I. Generalizations of the Capelli and Turnbull identities | |
| Sergio Caracciolo, Alan D. Sokal, Andrea Sportiello | R103 |
| Generating Functions for the Number of Permutations with Limited Displacement | |
| Torleiv Kløve | R104 |
| Generalized Schur Numbers for $x_1 + x_2 + c = 3x_3$ | |
| André E. Kézdy, Hunter S. Snevily, Susan C. White | R105 |
| On Biembeddings of Latin Squares | |
| M. J. Grannell, T. S. Griggs, M. Knor | R106 |
| Degree Powers in Graphs with a Forbidden Even Cycle | |
| Vladimir Nikiforov | R107 |
| Locally Restricted Compositions II. General Restrictions and Infinite Matrices | |
| Edward A. Bender, E. Rodney Canfield | R108 |
| Tiling Tripartite Graphs with $3$-Colorable Graphs | |
| Ryan Martin, Yi Zhao | R109 |
| Composition of Transpositions and Equality of Ribbon Schur $Q$-Functions | |
| Farzin Barekat, Stephanie van Willigenburg | R110 |
| $q$-Counting Descent Pairs with Prescribed Tops and Bottoms | |
| John Hall, Jeffrey Liese, Jeffrey B. Remmel | R111 |
| Combinatorics of Tripartite Boundary Connections for Trees and Dimers | |
| Richard W. Kenyon, David B. Wilson | R112 |
| A New Lower Bound on the Density of Vertex Identifying Codes for the Infinite Hexagonal Grid | |
| Daniel W. Cranston, Gexin Yu | R113 |
| Another Product Construction for Large Sets of Resolvable Directed Triple Systems | |
| Hongtao Zhao | R114 |
| Vertex-Oriented Hamilton Cycles in Directed Graphs | |
| Michael J. Plantholt, Shailesh K. Tipnis | R115 |
| On Suborbital Graphs for the Normalizer of $\Gamma_{0}(N)$ | |
| Refik Keskin, Bahar Demirtürk | R116 |
| On the Unitary Cayley Graph of a Finite Ring | |
| Reza Akhtar, Megan Boggess, Tiffany Jackson-Henderson, Isidora Jiménez, Rachel Karpman, Amanda Kinzel, Dan Pritikin | R117 |
| Tetravalent Non-Normal Cayley Graphs of Order $4p$ | |
| Jin-Xin Zhou | R118 |
| Rainbow Matchings in $r$-Partite $r$-Graphs | |
| Ron Aharoni, Eli Berger | R119 |
| Non-Isomorphic Graphs with Cospectral Symmetric Powers | |
| Amir Rahnamai Barghi, Ilya Ponomarenko | R120 |
| An Elementary Chromatic Reduction for Gain Graphs and Special Hyperplane Arrangements | |
| Pascal Berthomé, Raul Cordovil, David Forge, Véronique Ventos, Thomas Zaslavsky | R121 |
| Which Cayley Graphs are Integral? | |
| A. Abdollahi, E. Vatandoost | R122 |
| Spectral Extrema for Graphs: The Zarankiewicz Problem | |
| László Babai, Barry Guiduli | R123 |
| The Excessive [3]-Index of All Graphs | |
| David Cariolaro, Hung-Lin Fu | R124 |
| Perfect Matchings for the Three-Term Gale-Robinson Sequences | |
| Mireille Bousquet-Mélou, James Propp, Julian West | R125 |
| Counting Fixed-Height Tatami Tilings | |
| Frank Ruskey, Jennifer Woodcock | R126 |
| On-Line List Colouring of Graphs | |
| Xuding Zhu | R127 |
| Symmetric Functions for the Generating Matrix of the Yangian of $\mathfrak{gl}_n({\Bbb C})$ | |
| Natasha Rozhkovskaya | R128 |
| Trees and Meta-Fibonacci Sequences | |
| Abraham Isgur, David Reiss, Stephen Tanny | R129 |
| Random Threshold Graphs | |
| Elizabeth Perez Reilly, Edward R. Scheinerman | R130 |
| Entrywise Bounds for Eigenvectors of Random Graphs | |
| Pradipta Mitra | R131 |
| A New Determinant Expression of the Zeta Function for a Hypergraph | |
| Iwao Sato | R132 |
| Lower Bounds for $q$-ary Codes with Large Covering Radius | |
| Wolfgang Haas, Immanuel Halupczok, Jan-Christoph Schlage-Puchta | R133 |
| Bounds for the Hückel Energy of a Graph | |
| Ebrahim Ghorbani, Jack H. Koolen, Jae Young Yang | R134 |
| Some Gregarious Cycle Decompositions of Complete Equipartite Graphs | |
| Benjamin R. Smith | R135 |
| Counting $1324$, $4231$-Avoiding Permutations | |
| Michael H. Albert, M. D. Atkinson, Vincent Vatter | R136 |
| The Valuations of the Near Polygon ${\Bbb G}_n$ | |
| Bart De Bruyn | R137 |
| The Spectral Gap of Random Graphs with Given Expected Degrees | |
| Amin Coja-Oghlan, André Lanka | R138 |
| Mixing Time for a Random Walk on Rooted Trees | |
| Jason Fulman | R139 |
| Positivity of the T-System Cluster Algebra | |
| Philippe Di Francesco, Rinat Kedem | R140 |
| Isosceles Sets | |
| Yury J. Ionin | R141 |
| Set Families with a Forbidden Subposet | |
| Boris Bukh | R142 |
| Euler Characteristic of the Truncated Order Complex of Generalized Noncrossing Partitions | |
| D. Armstrong, C. Krattenthaler | R143 |
| Geodetic Topological Cycles in Locally Finite Graphs | |
| Agelos Georgakopoulos, Philipp Sprüssel | R144 |
| Application of graph combinatorics to rational identities of type $A$ | |
| Adrien Boussicault, Valentin Féray | R145 |
| Gelfand–Graev Characters of the Finite Unitary Groups | |
| Nathaniel Thiem, C. Ryan Vinroot | R146 |
| Multi-Covering Radius for Rank Metric Codes | |
| W. B. Vasantha, R. S. Selvaraj | R147 |
| On ${\rm STD}_6[18,3]$'s and ${\rm STD}_7[21,3]$'s Admitting a Semiregular Automorphism Group of Order 9 | |
| Kenzi Akiyama, Masayuki Ogawa, Chihiro Suetake | R148 |
| Automorphism groups of Cayley digraphs of ${\Bbb Z}_p^3$ | |
| Edward Dobson, István Kovács | R149 |
Notes
| An Improvement to Mathon's Cyclotomic Ramsey Colorings | |
| Xiaodong Xu, Stanisław P. Radziszowski | N1 |
| Landau's and Rado's Theorems and Partial Tournaments | |
| Richard A. Brualdi, Kathleen Kiernan | N2 |
| On the Size of Minimal Unsatisfiable Formulas | |
| Choongbum Lee | N3 |
| On Some Partitions Related to ${\Bbb Q}(\sqrt{2})$ | |
| Alexander E. Patkowski | N4 |
| A Short Proof, Based on Mixed Volumes, of Liggett's Theorem on the Convolution of Ultra-Logconcave Sequences | |
| Leonid Gurvits | N5 |
| Stability of Graphs | |
| Bünyamin Demir, Ali Deniz, Şahin Koçak | N6 |
| Alternating, Pattern-Avoiding Permutations | |
| Joel Brewster Lewis | N7 |
| Traces of Uniform Families of Sets | |
| Balázs Patkós | N8 |
| A Duality Based Proof of the Combinatorial Nullstellensatz | |
| Omran Kouba | N9 |
| A Note on Divisibility of the Number of Matchings of a Family of Graphs | |
| Kyung-Won Hwang, Naeem N. Sheikh, Stephen G. Hartke | N10 |
| Multigraphs (Only) Satisfy a Weak Triangle Removal Lemma | |
| Asaf Shapira, Raphael Yuster | N11 |
| On Coloring the Odd-Distance Graph | |
| Jacob Steinhardt | N12 |
| The Maximum Size of a Partial Spread in $H(4 n +1, q^2)$ is $q^{2 n +1}+1$ | |
| Frédéric Vanhove | N13 |
| Perfectly Balanced Partitions of Smoothed Graphs | |
| Ido Ben-Eliezer, Michael Krivelevich | N14 |
| Non-Repetitive 3-Coloring of Subdivided Graphs | |
| Andrzej Pezarski, Michał Zmarz | N15 |
| Note on Generating All Subsets of a Finite Set with Disjoint Unions | |
| David Ellis | N16 |
| Set Systems with Restricted $t$-wise Intersections Modulo Prime Powers | |
| Rudy X. J. Liu | N17 |
| A Note on Embedding Hypertrees | |
| Po-Shen Loh | N18 |
| A Note on Edge-Colourings Avoiding Rainbow $K_4$ and Monochromatic $K_m$ | |
| Veselin Jungić, Tomáš Kaiser, Daniel Král' | N19 |
| Cospectral Graphs on 12 Vertices | |
| A. E. Brouwer, E. Spence | N20 |
| Higher Chain Formula proved by Combinatorics | |
| Tsoy-Wo Ma | N21 |
| A Stability Property for Coefficients in Kronecker Products of Complex $S_n$ Characters | |
| Ernesto Vallejo | N22 |
| Paths and Stability Number in Digraphs | |
| Jacob Fox, Benny Sudakov | N23 |
| On the Energy of Unitary Cayley Graphs | PDF COMMENT |
| H. N. Ramaswamy, C. R. Veena | N24 |
| Sudoku Graphs are Integral | |
| Torsten Sander | N25 |
| Maximum Independent Sets in Certain Powers of Odd Cycles | |
| Tom Bohman, Ron Holzman, Venkatesh Natarajan | N26 |
| Depth Reduction of a Class of Witten Zeta Functions | |
| Xia Zhou, David M. Bradley, Tianxin Cai | N27 |
| A Note on $K_{\Delta+1}^-$-Free Precolouring with $\Delta$ Colours | |
| Tom Rackham | N28 |
| Cayley Graphs on the Symmetric Group Generated by Initial Reversals have Unit Spectral Gap | |
| Filippo Cesi | N29 |
| A Note on Packing Graphs Without Cycles of Length up to Five | |
| Agnieszka Görlich, Andrzej Żak | N30 |
| Unit Distance Graphs with Ambiguous Chromatic Number | |
| Michael S. Payne | N31 |
| Skew Spectra of Oriented Graphs | |
| Bryan Shader, Wasin So | N32 |
| A Note on the Distance-Balanced Property of Generalized Petersen Graphs | |
| Rui Yang, Xinmin Hou, Ning Li, Wei Zhong | N33 |
| Bipartite Coverings and the Chromatic Number | |
| Dhruv Mubayi, Sundar Vishwanathan | N34 |
ISSN: 1077-8926