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 25 Mar 2026 - 8:13

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

Published on 25 Mar 2026 - 8:12

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

Published on 25 Mar 2026 - 8:09

Can you map a 3-vector onto a spinor?

Published on 25 Mar 2026 - 8:07

Lie Algebra with certain properties is of odd dimension

Published on 11 Apr 2026 - 22:48