https://www.cimat.mx/wp-content/uploads/2021/04/transparent.png00Gómez Larrañaga José Carloshttps://www.cimat.mx/wp-content/uploads/2021/04/transparent.pngGómez Larrañaga José Carlos2021-03-23 20:34:052021-03-23 21:16:202-dimensional stratifolds homotopy equivalent to S2