# Projective Cross-ratio on Hypercomplex Numbers

@article{Brewer2013ProjectiveCO, title={Projective Cross-ratio on Hypercomplex Numbers}, author={Sky J Brewer}, journal={Advances in Applied Clifford Algebras}, year={2013}, volume={23}, pages={1-14} }

The paper presents a new cross-ratio of hypercomplex numbers based on projective geometry. We discuss the essential properties of the projective cross-ratio, notably its invariance under Möbius transformations. Applications to the geometry of conic sections and Möbiusinvariant metrics on the upper half-plane are also given.

## 8 Citations

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