1. Discrete Geometry on Colored Point Sets in the Plane—A Survey

   • Mikio Kano
   • Jorge Urrutia

   Original Paper 16 July 2020 Pages: 1 - 53

   

2. Supereulerian Graphs with Constraints on the Matching Number and Minimum Degree

   • Mansour J. Algefari
   • Hong-Jian Lai

   Original Paper 03 September 2020 Pages: 55 - 64

   

3. Strongly Spanning Trailable Graphs with Small Circumference and Hamilton-Connected Claw-Free Graphs

   • Xia Liu
   • Liming Xiong
   • Hong-Jian Lai

   Original Paper 12 October 2020 Pages: 65 - 85

   

4. Spiders and their Kin: An Investigation of Stanley’s Chromatic Symmetric Function for Spiders and Related Graphs

   • Angèle M. Foley
   • Joshua Kazdan
   • Alexander Tenenbaum

   Original Paper 19 September 2020 Pages: 87 - 110

   

5. Unit Ball Graphs on Geodesic Spaces

   • Masamichi Kuroda
   • Shuhei Tsujie

   Original Paper 15 September 2020 Pages: 111 - 125

   

6. The Largest Coefficient of the Highest Root and the Second Smallest Exponent

   • Tan Nhat Tran

   Original Paper 18 September 2020 Pages: 127 - 137

7. Encoding Labelled p-Riordan Graphs by Words and Pattern-Avoiding Permutations

   • Kittitat Iamthong
   • Ji-Hwan Jung
   • Sergey Kitaev

   Original Paper 21 September 2020 Pages: 139 - 149

   

8. On Well-Dominated Graphs

   • Sarah E. Anderson
   • Kirsti Kuenzel
   • Douglas F. Rall

   Original Paper 25 September 2020 Pages: 151 - 165

   

9. Rainbow Antistrong Connection in Tournaments

   • Yumei Hu
   • Yarong Wei

   Original Paper 28 September 2020 Pages: 167 - 181

   

10. Classification of Partially Metric Q-Polynomial Association Schemes with \(m_{ 1} = 4\)

    • Da Zhao

    Original Paper 06 October 2020 Pages: 183 - 197

    

11. Cut-Edges and Regular Factors in Regular Graphs of Odd Degree

    • Alexandr V. Kostochka
    • André Raspaud
    • Dara Zirlin

    Original Paper 30 October 2020 Pages: 199 - 207

    

12. Hamiltonicity in Prime Sum Graphs

    • Hong-Bin Chen
    • Hung-Lin Fu
    • Jun-Yi Guo

    Original Paper 19 October 2020 Pages: 209 - 219

    

13. Stability Theorems for Graph Vulnerability Parameters

    • Michael Yatauro

    Original Paper 23 October 2020 Pages: 221 - 239

14. Counting Locally Flat-Foldable Origami Configurations Via 3-Coloring Graphs

    • Alvin Chiu
    • William Hoganson
    • Sylvia Wu

    Original Paper 26 October 2020 Pages: 241 - 261

    

15. Decompositions of 6-Regular Bipartite Graphs into Paths of Length Six

    • Yanan Chu
    • Genghua Fan
    • Chuixiang Zhou

    Original Paper 07 November 2020 Pages: 263 - 269

16. Graphs with Diameter 2 and Large Total Domination Number

    • Artūras Dubickas

    Original Paper 02 November 2020 Pages: 271 - 279

17. An Injective Version of the 1-2-3 Conjecture

    • Julien Bensmail
    • Bi Li
    • Binlong Li

    Original Paper 06 November 2020 Pages: 281 - 311

    

18. Questions on Color-Critical Subgraphs

    • Nicholas Newman
    • Matthew Noble

    Original Paper 07 November 2020 Pages: 313 - 324

    

19. Upper Bounds on the k-Tuple (Roman) Domination Number of a Graph

    • Michael A. Henning
    • Nader Jafari Rad

    Original Paper 03 November 2020 Pages: 325 - 336

20. Ramsey and Gallai-Ramsey Numbers for Two Classes of Unicyclic Graphs

    • Zhao Wang
    • Yaping Mao
    • Jinyu Zou

    Original Paper 06 November 2020 Pages: 337 - 354

    

21. Strict Neighbor-Distinguishing Index of Subcubic Graphs

    • Jing Gu
    • Weifan Wang
    • Ying Wang

    Original Paper 09 November 2020 Pages: 355 - 368

    

22. On \(\ell \)-Distance-Balanced Product Graphs

    • Janja Jerebic
    • Sandi Klavžar
    • Gregor Rus

    Original Paper 09 November 2020 Pages: 369 - 379

23. Proportional Choosability of Complete Bipartite Graphs

    • Jeffrey A. Mudrock
    • Jade Hewitt
    • Collin Smith

    Original Paper 08 November 2020 Pages: 381 - 392