Literature

[AMS08]
P.-A. Absil, R. Mahony and R. Sepulchre. Optimization Algorithms on Matrix Manifolds (Princeton University Press, 2008), available online at press.princeton.edu/chapters/absil/.
[Bou23]
[EPS72]
J. Ehlers, F. A. Pirani and A. Schild. Republication of: The geometry of free fall and light propagation. General Relativity and Gravitation 44, 1587–1609 (1972).
[LP13]
M. Lorenzi and X. Pennec. Efficient Parallel Transport of Deformations in Time Series of Images: From Schild's to Pole Ladder. Journal of Mathematical Imaging and Vision 50, 5–17 (2013), arXiv:00870489.
[MF12]
P. Muralidharan and P. T. Fletcher. Sasaki metrics for analysis of longitudinal data on manifolds. In: 2012 IEEE Conference on Computer Vision and Pattern Recognition (2012).
[Pen18]
[SI13]
H. Sato and T. Iwai. A new, globally convergent Riemannian conjugate gradient method. Optimization 64, 1011–1031 (2013), arXiv:1302.0125.