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hep-th2000★ 122 cited
Conformal and Quasiconformal Realizations of Exceptional Lie Groups
M. Gunaydin, K. Koepsell, H. Nicolai
We present a nonlinear realization of E_8 on a space of 57 dimensions, which is quasiconformal in the sense that it leaves invariant a suitably defined ``light cone'' in 57 dimensi…
hep-th2000★ 84 cited
An exceptional geometry for d=11 supergravity?
K. Koepsell, H. Nicolai, H. Samtleben
We analyze the algebraic constraints of the generalized vielbein in SO(1,2) x SO(16) invariant d=11 supergravity, and show that the bosonic degrees of freedom of d=11 supergravity,…