1 citations · 1 across the 3 of their papers we have counts for
3 papers
The 3-symmetric Pseudolinear Crossing Number of
Víctor H. Gómez Martínez, César Hernández-Vélez, Jesús Leaños
We show that the 3-symmetric rectilinear and the 3-symmetric pseudolinear crossing numbers of are equal. Specifically, we prove that $\operatorname{sym}-\overline{\operato…
Thrackles on nonplanar surfaces
César Hernández-Vélez, Jan Kynčl, Gelasio Salazar
A thrackle is a drawing of a graph on a surface such that (i) adjacent edges only intersect at their common vertex; and (ii) nonadjacent edges intersect at exactly one point, at wh…
Matroid basis graph: Counting Hamiltonian cycles
Cristina G. Fernandes, César Hernández-Vélez, José C. de Pina +1
We present exponential and super factorial lower bounds on the number of Hamiltonian cycles passing through any edge of the basis graphs of a graphic, generalized Catalan and unifo…