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math.DG2008
A unified approach to compact symmetric spaces of rank one
Adam Korányi, Fulvio Ricci
A relatively simple algebraic framework is given, in which all the compact symmetric spaces can be described and handled without distinguishing cases. We also give some application…
math.DG1992
A class of nonsymmetric harmonic Riemannian spaces
Ewa Damek, Fulvio Ricci
Certain solvable extensions of -type groups provide noncompact counterexamples to the so-called Lichnerowicz conjecture, which asserted that ``harmonic'' Riemannian spaces must…