A class of nonsymmetric harmonic Riemannian spaces

Author:

Damek Ewa,Ricci Fulvio

Abstract

Certain solvable extensions of H-type groups provide noncompact counterexamples to a conjecture of Lichnerowicz, which asserted that "harmonic" Riemannian spaces must be rank 1 symmetric spaces.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference11 articles.

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2. Generalized Heisenberg groups and solvmanifolds naturally associated;Boggino, Jorge;Rend. Sem. Mat. Univ. Politec. Torino,1985

3. 𝐻-type groups and Iwasawa decompositions;Cowling, Michael;Adv. Math.,1991

4. \bysame, H-type groups and Iwasawa decompositions, II (to appear).

5. The geometry of a semidirect extension of a Heisenberg type nilpotent group;Damek, Ewa;Colloq. Math.,1987

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