## Volume 19, Issue 4 (2012)

#### Papers

 The Lowest-Degree Polynomial with Nonnegative Coefficients Divisible by the $n$-th Cyclotomic Polynomial PDF John P. Steinberger P1
 Constructions of Bipartite and Bipartite-regular Hypermaps PDF Rui Duarte P2
 Invariant Principal Order Ideals under Foata’s Transformation PDF Teresa X.S. Li, Melissa Y.F. Miao P3
 Some Constant Weight Codes from Primitive Permutation Groups PDF Derek H. Smith, Roberto Montemanni P4
 Rainbow Connection of Sparse Random Graphs PDF Alan Frieze, Charalampos E. Tsourakakis P5
 Uniquely $K_r$-Saturated Graphs PDF Stephen G. Hartke, Derrick Stolee P6
 On Extensions of the Alon-Tarsi Latin Square Conjecture PDF COMMENT Daniel Kotlar P7
 Orientations, Semiorders, Arrangements, and Parking Functions PDF Sam Hopkins, David Perkinson P8
 The Closed Knight Tour Problem in Higher Dimensions PDF Joshua Erde, Bruno Golénia, Sylvain Golénia P9
 Maximum Frustration in Bipartite Signed Graphs PDF Garry S Bowlin P10
 Repetition Threshold for Circular Words PDF Irina A. Gorbunova P11
 Hypohamiltonian Graphs and their Crossing Number PDF Carol T. Zamfirescu P12
 Spectral Properties of Unitary Cayley Graphs of Finite Commutative Rings PDF Xiaogang Liu, Sanming Zhou P13
 Locally Restricted Compositions IV. Nearly Free Large Parts and Gap-Freeness PDF Edward A. Bender, E. Rodney Canfield, Zhicheng Gao P14
 New Proofs of Determinant Evaluations Related to Plane Partitions PDF Hjalmar Rosengren P15
 Ehrhart $f^*$-Coefficients of Polytopal Complexes are Non-negative Integers PDF Felix Breuer P16
 Finite Homomorphism-Homogeneous Permutations via Edge Colourings of Chains PDF Igor Dolinka, Éva Jungábel P17
 Large 2-Coloured Matchings in 3-Coloured Complete Hypergraphs PDF Tamás Terpai P18
 Canonical Decompositions of Affine Permutations, Affine Codes, and Split $k$-Schur Functions PDF Tom Denton P19
 On Codes that are Invariant under the Affine Group PDF Peter Sin P20
 A Simple Branching Process Approach to the Phase Transition in $G_{n,p}$ PDF Béla Bollobás, Oliver Riordan P21
 Schur Polynomials, Banded Toeplitz Matrices and Widom's Formula PDF Per Alexandersson P22
 A Note on Automorphisms of the Infinite-Dimensional Hypercube Graph PDF Mark Pankov P23
 Large Incidence-free Sets in Geometries PDF Stefaan De Winter, Jeroen Schillewaert, Jacques Verstraete P24
 Distance Powers and Distance Matrices of Integral Cayley Graphs over Abelian Groups PDF Walter Klotz, Torsten Sander P25
 Irreducible Cycles and Points in Special Position in Moduli Spaces for Tropical Curves PDF Andreas Gathmann, Franziska Schroeter P26
 On the Parity of Certain Coefficients for a $q$-Analogue of the Catalan Numbers PDF Kendra Killpatrick P27
 Properties of Random Difference Graphs PDF Christopher Ross P28
 Partially Ordinal Sums and $P$-partitions PDF Daniel K. Du, Qing-Hu Hou P29
 Resolving Sets and Semi-Resolving Sets in Finite Projective Planes PDF Tamás Héger, Marcella Takáts P30
 A Construction of Short Sequences Containing All Permutations of a Set as Subsequences PDF Sasa Radomirovic P31
 Identifying Vertex Covers in Graphs PDF Michael A Henning, Anders Yeo P32
 Structure of Colored Complete Graphs Free of Proper Cycles PDF Vincent Coll, Colton Magnant, Kathleen Ryan P33
 Some Convolution Identities and an Inverse Relation Involving Partial Bell Polynomials PDF Daniel Birmajer, Juan B. Gil, Michael D. Weiner P34
 The (Signless Laplacian) Spectral Radii of Connected Graphs with Prescribed Degree Sequences PDF Muhuo Liu P35
 Ramsey Numbers $R(K_3, G)$ for Graphs of Order 10 PDF Gunnar Brinkmann, Jan Goedgebeur, Jan-Christoph Schlage-Puchta P36
 The Hitting Time of Rainbow Connection Number Two PDF Annika Heckel, Oliver Riordan P37
 A Proof of Erdős-Fishburn's Conjecture for $g(6)=13$ PDF Wei Xianglin P38
 Combinatorial Expansions in $K$-Theoretic Bases PDF Jason Bandlow, Jennifer Morse P39
 Münchhausen Matrices PDF Michael Brand P40
 Counting Bases of Representable Matroids PDF Michael Snook P41
 An Ordered Turán Problem for Bipartite Graphs PDF Craig Timmons P43
 Optimal Divisibility Conditions for Loose Hamilton Cycles in Random Hypergraphs PDF Andrzej Dudek, Alan Frieze, Po-Shen Loh, Shelley Speiss P44
 Γ-Species and the Enumeration of $k$-Trees PDF Andrew Gainer-Dewar P45
 The Tau Constant and the Edge Connectivity of a Metrized Graph PDF Zubeyir Cinkir P46
 Three Color Ramsey Numbers for Graphs with at most 4 Vertices PDF Luis Boza, Janusz Dybizbański, Tomasz Dzido P47
 Further Analysis on the Total Number of Subtrees of Trees PDF Shuchao Li, Shujing Wang P48
 On Cross-Intersecting Families of Set Partitions PDF Cheng Yeaw Ku, Kok Bin Wong P49
 List-Coloring Graphs on Surfaces with Varying List-Sizes PDF Alice M. Dean, Joan P. Hutchinson P50
 On the Spanning Trees of the Hypercube and other Products of Graphs PDF Olivier Bernardi P51
 On the Number of Partition Weights with Kostka Multiplicity One PDF Zachary Gates, Brian Goldman, C. Ryan Vinroot P52
 Connectivity for Random Graphs from a Weighted Bridge-Addable Class PDF Colin McDiarmid P53
 The Number of Ways to Assemble a Graph PDF Andrew Vince, Miklós Bóna P54
 Generalized Alcuin's Sequence PDF Daniel Panario, Murat Sahin, Qiang Wang P55
 Identifying Codes of Lexicographic Product of Graphs PDF Min Feng, Min Xu, Kaishun Wang P56

ISSN: 1077-8926