Cross ratios in complex variables theory have some interesting geometrical properties, as illustrated here. They also have a nice symmetry principle (not stated here). #math #complexanalysispic.twitter.com/DG3hBOS7pP
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I feel like complex analysis could be turned into a nice introduction to representation theory
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Indeed, in our case the Möbius transformations give us a representation of the Lie group GL(2,C).
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wait till you hear about N-dimensional Moebius transforms http://users.mct.open.ac.uk/au73/papers/prb55_5266.pdf …
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Yes, they are mentioned succinctly in Section III of this nice paper. Thanks Valentin.
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