1. The Maximum Number of Edges in Geometric Graphs with Pairwise Virtually Avoiding Edges

   • Eyal Ackerman
   • Noa Nitzan
   • Rom Pinchasi

   Original Paper 17 July 2013 Pages: 1065 - 1072

2. The t-Tone Chromatic Number of Random Graphs

   • Deepak Bal
   • Patrick Bennett
   • Alan Frieze

   Original Paper 30 July 2013 Pages: 1073 - 1086

3. Additive Coloring of Planar Graphs

   • Tomasz Bartnicki
   • Bartłomiej Bosek
   • Wiktor Żelazny

   Original Paper Open access 18 June 2013 Pages: 1087 - 1098

4. 3-Connected {K _1,3, P ₉}-Free Graphs are Hamiltonian-Connected

   • Qiuju Bian
   • Ronald J. Gould
   • Paul Wrayno

   Original Paper 31 July 2013 Pages: 1099 - 1122

5. Spectral Characterizations of the Corona of a Cycle and Two Isolated Vertices

   • Changjiang Bu
   • Jiang Zhou
   • Wenzhe Wang

   Original Paper 28 May 2013 Pages: 1123 - 1133

6. [r, s, t]-Colorings of Graph Products

   • Lyes Dekar
   • Brice Effantin
   • Hamamache Kheddouci

   Original Paper 13 August 2013 Pages: 1135 - 1147

7. Forbidden Triples Containing a Complete Graph and a Complete Bipartite Graph of Small Order

   • Yoshimi Egawa
   • Michitaka Furuya

   Original Paper 25 June 2013 Pages: 1149 - 1162

8. The Number of Out-Pancyclic Vertices in a Strong Tournament

   • Qiaoping Guo
   • Shengjia Li
   • Huiling Zhao

   Original Paper 15 June 2013 Pages: 1163 - 1173

9. Some Bistar Bipartite Ramsey Numbers

   • Johannes H. Hattingh
   • Ernst J. Joubert

   Original Paper 03 August 2013 Pages: 1175 - 1181

10. A Sharp Upper Bound on the Least Signless Laplacian Eigenvalue Using Domination Number

    • Chang-Xiang He
    • Min Zhou

    Original Paper 02 July 2013 Pages: 1183 - 1192

11. Quadrangulations on 3-Colored Point Sets with Steiner Points and Their Winding Numbers

    • Sho Kato
    • Ryuichi Mori
    • Atsuhiro Nakamoto

    Original Paper 30 July 2013 Pages: 1193 - 1205

12. Enumeration of Fixed Points of an Involution on β(1, 0)-Trees

    • Sergey Kitaev
    • Anna de Mier

    Original Paper 02 July 2013 Pages: 1207 - 1221

13. There are Infinitely Many Williams Squares with Circular Structure and Order a Multiple of 4

    • M. A. Ollis
    • Devin T. Willmott

    Original Paper 02 August 2013 Pages: 1223 - 1232

14. On Spectral Hypergraph Theory of the Adjacency Tensor

    • Kelly J. Pearson
    • Tan Zhang

    Original Paper 30 July 2013 Pages: 1233 - 1248

15. Coloring Non-uniform Hypergraphs Without Short Cycles

    • Dmitry A. Shabanov

    Original Paper 29 June 2013 Pages: 1249 - 1260

16. On Hamiltonicity of 3-Connected Claw-Free Graphs

    • Runli Tian
    • Liming Xiong
    • Zhaohong Niu

    Original Paper 10 August 2013 Pages: 1261 - 1269

17. Circuits of Each Length in Tournaments

    • Yue-Li Wang
    • Jun-Lin Guo
    • Hung-Chang Chan

    Original Paper 09 July 2013 Pages: 1271 - 1282

18. Hamiltonicity of 3-Arc Graphs

    • Guangjun Xu
    • Sanming Zhou

    Original Paper 15 June 2013 Pages: 1283 - 1299

19. The Spectrum Meta(H > T, λ) for Some Subgraphs H and T of K ₄

    • Landang Yuan
    • Yanli Zhang
    • Qingde Kang

    Original Paper 02 July 2013 Pages: 1301 - 1318

20. A Class of Bipartite 2-Path-Transitive Graphs

    • Hua Zhang

    Original Paper 30 July 2013 Pages: 1319 - 1324