- Grigoriy Blekherman, Annie Raymond, Mohit Singh, Rekha R. Thomas. Simple Graph Density Inequalities with No Sum of Squares Proofs. Combinatorica, 40(4):455-471, 2020.
- Paul D. Seymour, Sophie Spirkl. Short Directed Cycles in Bipartite Digraphs. Combinatorica, 40(4):575-599, 2020.
- He Guo, Lutz Warnke. Packing Nearly Optimal Ramsey R(3, t) Graphs. Combinatorica, 40(1):63-103, 2020.
- Tali Kaufman, Izhar Oppenheim. High Order Random Walks: Beyond Spectral Gap. Combinatorica, 40(1):245-281, 2020.
- Anurag Bishnoi, Ferdinand Ihringer, Valentina Pepe. A Construction for Clique-Free Pseudorandom Graphs. Combinatorica, 40(3):307-314, 2020.
- Robert Connelly, Steven J. Gortler, Louis Theran. Generically Globally Rigid Graphs Have Generic Universally Rigid Frameworks. Combinatorica, 40(1):1-37, 2020.
- Alexander F. Sidorenko. Weakly Norming Graphs are Edge-Transitive. Combinatorica, 40(4):601-604, 2020.
- Peter J. Ayre, Amin Coja-Oghlan, Pu Gao, Noëla Müller. The Satisfiability Threshold For Random Linear Equations. Combinatorica, 40(1):179-235, 2020.
- John Chiarelli, Pooya Hatami, Michael E. Saks. An Asymptotically Tight Bound on the Number of Relevant Variables in a Bounded Degree Boolean function. Combinatorica, 40(1):237-244, 2020.
- Alexander L. Gavrilyuk, Sho Suda, Janos Vidali. On Tight 4-Designs in Hamming Association Schemes. Combinatorica, 40(3):345-362, 2020.