424 citations · 2.9k across the 101 of their papers we have counts for
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The octonionic phase space Hopf map
Martin Cederwall
The octonionic Hopf map, expressing as an bundle over , appears in the twistor transform in 10 dimensions, playing the rôle of the celestial sphere. A sym…
Some remarks on invariants
Martin Cederwall, Jessica Hutomo, Sergei M. Kuzenko +2
The demand to know the structure of functionally independent invariants of tensor fields arises in many problems of theoretical and mathematical physics, for instance for the const…
Non-associative structures in extended geometry
Martin Cederwall, Jakob Palmkvist
We consider a generalisation of vector fields on a vector space, where the vector space is generalised to a highest-weight module over a Kac-Moody algebra. The generalised vector f…
BV actions for extended geometry
Martin Cederwall
I review the construction of actions for extended geometry from the grading of an underlying tensor hierarchy algebra, which provides the full set of Batalin-Vilkovisky fields. The…
Gradient structures from extensions of over-extended Kac-Moody algebras
Martin Cederwall, Jakob Palmkvist
Over-extended Kac-Moody algebras contain so-called gradient structures - a gl(d)-covariant level decomposition of the algebra contains strings of modules at different levels that c…
Curvature of an exotic 7-sphere
David S. Berman, Martin Cederwall, Tancredi Schettini Gherardini
We study the geometry of the Gromoll-Meyer sphere, one of Milnor's exotic -spheres. We focus on a Kaluza-Klein Ansatz, with a round as base space, unit as fibre, and…