Twistors, 4-symmetric spaces and integrable systems

Francis E Burstall, Idrisse Khemar

Research output: Contribution to journalArticlepeer-review

9 Citations (SciVal)


An order four automorphism of a Lie algebra gives rise to an integrable system introduced by Terng. We show that solutions of this system may be identified with certain vertically harmonic twistor lifts of conformal maps of surfaces in a Riemannian symmetric space. As applications, we find that surfaces with holomorphic mean curvature in 4-dimensional real or complex space forms constitute an integrable system as do Hamiltonian stationary Lagrangian surfaces in 4-dimensional Hermitian symmetric spaces (this last providing a conceptual explanation of a result of Hélein-Romon).
Original languageEnglish
Pages (from-to)451-461
Number of pages11
JournalMathematische Annalen
Issue number2
Early online date4 Dec 2008
Publication statusPublished - Jun 2009


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