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Supplement on Curved flats in the space of point pairs and Isothermic surfaces: A Quaternionic Calculus

Udo Hertrich-Jeromin
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Abstract

A quaternionic calculus for surface pairs in the conformal 4-sphere is elaborated. This calculus is then used to discuss the relation between curved flats in the symmetric space of point pairs and Darboux and Christoffel pairs of isothermic surfaces. A new viewpoint on relations between surfaces of constant mean curvature in certain space forms is presented --- in particular, a new form of Bryant's Weierstrass type representation for surfaces of constant mean curvature 1 in hyperbolic 3-space is given.

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BibTeXRIS

Udo Hertrich-Jeromin. 1997-09-24. Supplement on Curved flats in the space of point pairs and Isothermic surfaces: A Quaternionic Calculus. https://arxiv.org/abs/dg-ga/9709019

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