On the classifying problem for the class of real solvable Lie algebras having 2-dimensional or 2-codimensional derived ideal

Vu A. Le, Tuan A. Nguyen, Tu T. C. Nguyen +2

Let $\mathrm{Lie}\left(n,k\right)$ denote the class of all $n$-dimensional real solvable Lie algebras having $k$-dimensional derived ideal ($1⩽k⩽n-1$). In 199…