Graded contractions on the orthogonal Lie algebras of dimensions 7 and 8

Cristina Draper, Thomas Leenen Meyer, Juana Sánchez-Ortega

Graded contractions of certain non-toral ${\mathbb{Z}}_2^3$-gradings on the simple Lie algebras $\mathfrak{so}(7,\mathbb{C})$ and $\f{so}(8,\mathbb C)$ are classified up to two notion…