Abstract
We introduce the notion of symmetric triad, which is a generalization of the notion of irreducible root system, and study its fundamental properties. Applying these results, we study the orbit spaces of Hermann actions on compact symmetric spaces.
Citation
Osamu IKAWA. "The geometry of symmetric triad and orbit spaces of Hermann actions." J. Math. Soc. Japan 63 (1) 79 - 136, January, 2011. https://doi.org/10.2969/jmsj/06310079
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