10 papers
The Minimal Unitary Representation of E_8(8)
M. Gunaydin, K. Koepsell, H. Nicolai
We give a new construction of the minimal unitary representation of the exceptional group E_8(8) on a Hilbert space of complex functions in 29 variables. Due to their manifest cova…
couplings, the fundamental membrane and exceptional theta correspondences
B. Pioline, H. Nicolai, J. Plefka +1
This letter is an attempt to carry out a first-principle computation in M-theory using the point of view that the eleven-dimensional membrane gives the fundamental degrees of freed…
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,…
On the Yangian Y(e_8) quantum symmetry of maximal supergravity in two dimensions
K. Koepsell, H. Nicolai, H. Samtleben
We present the algebraic framework for the quantization of the classical bosonic charge algebra of maximally extended (N=16) supergravity in two dimensions, thereby taking the firs…
Missing Modules, the Gnome Lie Algebra, and
O. Bärwald, R. W. Gebert, M. Günaydin +1
We study the embedding of Kac-Moody algebras into Borcherds (or generalized Kac-Moody) algebras which can be explicitly realized as Lie algebras of physical states of some complete…
An Affine String Vertex Operator Construction at Arbitrary Level
R. W. Gebert, H. Nicolai
An affine vertex operator construction at arbitrary level is presented which is based on a completely compactified chiral bosonic string whose momentum lattice is taken to be the (…