Mar 26, 2025 The McGee group is one of the two smallest groups with an outer automorphism that preserves conjugacy classes. My route to understanding this fact was a long and winding one.

For example, f(X)=X² gives f'(X)[dX] = X dX + dX X. Or f(X) = X⁻¹ gives f'(X)[dX] = –X⁻¹ dX X⁻¹. These are perfectly good linear operators acting on matrices dX, even though they are not written in ...

The new trailer and poster for the live-action How to Train Your Dragon have finally been unleashed (via SFFGazette.com), and all signs point to the movie doing right by the beloved DreamWorks ...