Existence and non-existence results on semipositone weighted quasilinear radial problems; X Americas Conference on Differential Equations and Nonlinear Analysis, CO19110, Argentina, febrero 2015.
Signed radial solutions for phi-Laplacian problems; 13th Americas Conference on Differential Equations and Nonlinear Analysis & ICMC Summer Meeting on Differential Equations Chapter 2023, São Carlos, Brasil, febrero 2023.
A sub-supercritical p-Laplacian problem; ICMC Summer Meeting on Differential Equations 2019 Chapter, São Carlos, Brasil, febrero 2019.
A new result about uniqueness of radial nodal solution for nonhomogeneous semilinear Dirichlet problems; ICMC Summer Meeting on Differential Equations 2016 chapter at Universidade de São Paulo at São Carlos, São Carlos, Brasil, febrero 2016.
On a weighted quasilinear radial problem; ICMC Summer Meeting on Differential Equations 2014 chapter at Universidade de São Paulo at São Carlos, São Carlos, SP, Brasil, Brasil, febrero 2014.
¿On uniqueness of radial solution for non-homogeneous semilinear elliptic problems"; VI Workshop on Nonlinear Analysis and Partial Differential Equations, Manizales, Colombia, mayo 2023.
¿Solución radial positiva para un problema cuasilineal semipositon¿; XXIII Congreso Colombiano de Matemáticas, Tunja, Colombia, junio 2023.
Non-Newtonian fluids with convective effects; IV Taller internacional de análisis no lineal y ecuaciones diferenciales parciales, CO17001, Colombia, julio 2017.
Sobre problemas elípticos semipositones con peso; XX Congreso Colombiano de Matemáticas, CO17001, Colombia, julio 2015.
Sobre la unicidad de soluciones radiales nodales para problemas elípticos; IX Simposio Nororiental de Matemáticas, CO68001, Colombia, diciembre 2015.
Radial solutions for a p-Laplacian problem: sub-super critical case; 12th Americas Conference on Differential Equations and Nonlinear Analysis. CIMAT Guanajuato México., Guanajuato, México, diciembre 2019.
¿Shooting method applied to a semipositone ¿-Laplacian problem¿.; UNC Greensboro PDE conference of 2023. Virtual conference, Greensboro, North caroline, Estados Unidos de América, junio 2023.
Radial solutions for a sub-super critical p-Laplacian problem; Variational and Topological Methods Theory, Applications, Numerical Simulations, and Open Problems, Flagstaff, Arizona, USA, Estados Unidos de América, junio 2018.