Synonyms
- Para-quaternions (Ivanov and Zamkovoy 2005, Mohaupt 2006) Manifolds with para-quaternionic structures are studied in differential geometry and string theory. In the para-quaternionic literature k is replaced with −k.
- Musean hyperbolic quaternions
- Exspherical system (Macfarlane 1900)
- Split-quaternions (Rosenfeld 1988)
- Antiquaternions (Rosenfeld 1988)
- Pseudoquaternions (Rosenfeld 1988)
Read more about this topic: Split-quaternion
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