[51] Large induced forests in graphs

[52] Curvature aspects of graphs

[53] The existence and nonexistence of global solutions for a semilinear heat equation on graphs

[54] Stochastic completeness for graphs with curvature dimension conditions

[55] Kazdan–Warner equation on graph

[56] Yamabe type equations on graphs

[57] Cohomology of digraphs and (undirected) graphs

[58] Li-Yau inequality on graphs

[59] Ricci-flat graphs with girth at least five

[60] Harnack inequalities for graphs with non-negative Ricci curvature

[61] Homotopy Theory for Digraphs

[62] Enumeration of points, lines, planes, etc.

[63] On the size of graphs without repeated cycle lengths

[64] Koszulity of directed categories in representation stability theory

[65] Noetherian property of infinite EI categories

[66] Graphs without repeated cycle lengths

[67] Noise correlation bounds for uniform low degree functions

[68] Some combinatorial properties of flag simplicial pseudomanifolds and spheres

[69] On the generalized lower bound conjecture for polytopes and spheres

[70] Generalization of Selberg’s $$ \frac{3}{{16}} $$ theorem and affine sieve

[71] Potentially $K_{m}-G$-graphical Sequences: A Survey

[72] A Lower Bound for the Number of Edges in a Graph Containing No Two Cycles of the Same Length

[73] On the size of graphs with all cycle having distinct length

[74] Some open problems on cycles

[75] Chemical indices, mean distance, and radius