Matrix Exponential Watch
- Thread Starter
Last edited by latentcorpse; 10-12-2010 at 15:14.
- 10-12-2010 15:13
- 10-12-2010 17:19
Heuristically, you can ignore the outer rows and columns and concentrate on the inner 2x2 matrix. Then, note that there is an injective ring homomorphism taking . Then note that and because is very nice (namely, it is continuous and -linear), . So .
Or you could diagonalise the matrix and calculate it explicitly.