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Real Forms of Complex Higher Spin Field Equations and New Exact Solutions
Carlo Iazeolla, Ergin Sezgin, Per Sundell
We formulate four dimensional higher spin gauge theories in spacetimes with signature (4-p,p) and nonvanishing cosmological constant. Among them are chiral models in Euclidean (4,0…
Singleton Strings
J. Engquist, P. Sundell, L. Tamassia
In this note, we briefly introduce singleton representations and discuss their relevance to the study of string and brane configurations in AdS space, their tensionless limit and t…
On Higher Spins with a Strong Sp(2,R) Condition
A. Sagnotti, E. Sezgin, P. Sundell
We report on an analysis of the Vasiliev construction for minimal bosonic higher-spin master fields with oscillators that are vectors of SO(D-1,2) and doublets of Sp(2,R). We show…
Higher Spin N=8 Supergravity in AdS_4
E. Sezgin, P. Sundell
We review the basic structure of the higher spin extension of D=4, N=8 AdS supergravity. The theory is obtained by gauging the higher spin superalgebra shs^E(8|4) by a procedure pi…
Aspects of the M5-Brane
E. Sezgin, P. Sundell
The kappa symmetry of an open M2-brane ending on an M5-brane requires geometrical constraints on the embedding of the system in target superspace. These constraints lead to the M5-…