https://www.cimat.mx/wp-content/uploads/2021/04/transparent.png00Quiroga Barranco Raúlhttps://www.cimat.mx/wp-content/uploads/2021/04/transparent.pngQuiroga Barranco Raúl2021-03-23 20:27:402021-03-23 22:05:11Pseudo-Riemannan $G_{2(2)}$-manifolds with dimension at most 21
