2 papers
math.DG2026
Diffeomorphic Logarithm of Special Orthogonal Matrices
Zhifeng Deng, P. -A. Absil, Kyle A. Gallivan +1
The special orthogonal group is a Lie group whose geometry and local structure are encoded by the exponential map in its Lie algebra , the set of s…
math.NA2026
The eigenvalue decomposition of normal matrices by the skew-symmetric part
Simon Mataigne, Kyle A. Gallivan
We propose a new method for computing the eigenvalue decomposition of a dense real normal matrix through the decomposition of its skew-symmetric part. The method relies on algo…