Intrinsically biharmonic maps into homogeneous spaces


Hornung, P. and Moser, R., 2012. Intrinsically biharmonic maps into homogeneous spaces. Advances in Calculus of Variations, 5 (4), 411–425.

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The tension field $\tau(u)$ of a map $u$ from a domain ­ $\Omega \subset \mathbb{R}^m$ into a manifold $N$ is the negative $L^2$-gradient of the Dirichlet energy. In this paper we study critical points of the intrinsic biharmonic energy functional $T(u) = \int_\Omega |\tau(u)|^2$ when $N$ is a homogeneous space. We derive an Euler-Lagrange equation which makes sense for all critical points of $T$, in contrast to previously known versions. We also obtain a partial regularity result for solutions to this equation for arbitrary domain dimension.


Item Type Articles
CreatorsHornung, P.and Moser, R.
DepartmentsFaculty of Science > Mathematical Sciences
Publisher StatementHornungMoser.pdf: The final publication is available at
ID Code23763


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