List questions from exceptional-isomorphisms | MathQA

What is $(\operatorname{SL}_2(\mathbb{R})\times\operatorname{SL}_2(\mathbb{R})\times\operatorname{SL}_2(\mathbb{R}))/\{\pm(I_2,I_2,I_2)\}$?

Published on 04 Nov 2021 - 9:25

Are all isomorphisms between the Fano plane and its dual of order two?

Published on 17 Jan 2022 - 22:33

Is $ SU_2 \otimes SU_2 $ conjugate to $ SO_4(\mathbb{R}) $ in $ SU_4 $?

Published on 06 Mar 2022 - 15:42

Can you map a 3-vector onto a spinor?

Published on 21 Jul 2022 - 12:34

Lie Algebra with certain properties is of odd dimension

Published on 23 Feb 2026 - 21:15