This function computes the Riemannian logarithmic map using the Bures-Wasserstein metric for symmetric positive-definite matrices.
Usage
bures_wasserstein_log(sigma, lambda)
Arguments
- sigma
A symmetric positive-definite matrix of class dppMatrix, representing the reference point.
- lambda
A symmetric positive-definite matrix of class dppMatrix, representing the target point.
Value
A symmetric matrix of class dspMatrix, representing the tangent space image of lambda at sigma.