@ronnybergmann once upon a time I worked on curve fitting objects under Riemannian Lie group actions, but not lately.

@ronnybergmann polynomials generalized as covariant ODEs: link.springer.com/article/10.1 Things simplify a bit when there's a Lie group action under which the metric is left or right invariant, which is common in image registration and . Pretty fun area to work in!

@hinkle Oh, I even know that Paper, just did not have all authors in mind – very cool.

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