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@article{faucris.308586710,
abstract = {We discuss the interplay between causal structures of symmetric spaces and geometric aspects of Algebraic Quantum Field Theory (AQFT). The central focus is the set of Euler elements in a Lie algebra, i.e., elements whose adjoint action defines a 3-grading. In the first half of this article we survey the classification of reductive causal symmetric spaces from the perspective of Euler elements. This point of view is motivated by recent applications in AQFT. In the second half we obtain several results that prepare the exploration of the deeper connection between the structure of causal symmetric spaces and AQFT. In particular, we explore the technique of strongly orthogonal roots and corresponding systems of sl2-subalgebras. Furthermore, we exhibit real Matsuki crowns in the adjoint orbits of Euler elements and we describe the group of connected components of the stabilizer group of Euler elements.},
author = {Morinelli, Vincenzo and Neeb, Karl-Hermann and Ã“lafsson, Gestur},
faupublication = {yes},
journal = {Journal of Lie Theory},
keywords = {causal symmetric space; cone field; Euler element; invariant convex cone},
note = {CRIS-Team Scopus Importer:2023-08-04},
pages = {377-432},
peerreviewed = {Yes},
title = {{From} {Euler} {Elements} and 3-{Gradings} to {Non}-{Compactly} {Causal} {Symmetric} {Spaces}},
volume = {33},
year = {2023}
}