Non-existence of semi-simple Lie algebras with dimension $4$ or $5$
112880
There are no semisimple Lie algebras of dimension $4$, $5$, or $7$
67842
Solvable equivalent to nilpotency of first derived Lie algebra?
8694
$A_4$ is not isomorphic to $D_6$
68717
Complete reducibility of a representation of a lie algebra
122121
Is there a vector space that cannot be an inner product space?
89805
2-dimensional Lie subgroups of $SO(3)$
74162
Show intersection of two algebras are not a $\sigma$-algebra
90365
Riemannian Manifolds with $n(n+1)/2$ dimensional symmetry group
109688
Zero-dimensional ideals and finite-dimensional algebras
68001
Semisimple Lie algebras are perfect.
66546
Tensor product of reduced $k$-algebras must be reduced?
96380
Representation of $\text{sl}(2,\mathbb{C})$
74024
Higher dimensional equivalent of complex numbers
156521
Centre of Lie Algebra $sl_2(\mathbb{F})$
152766
3-dim simple complex Lie algebra
118396
Non abelian Lie group with abelian Lie algebra
56727
Odd-dimensional complex skew-symmetric matrix has eigenvalue $0$