Abstract
We prove an equivariant implicit function theorem for variational problems that are invariant under a varying symmetry group (corresponding to a bundle of Lie groups). Motivated by applications to families of geometric variational problems lacking regularity, several non-smooth extensions of the result are discussed. Among such applications is the submanifold problem of deforming the ambient metric preserving a given variational property of a prescribed family of submanifolds, e.g., constant mean curvature, up to the action of the corresponding ambient isometry groups.
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*Supported by the NSF grants DMS-0941615 and DMS-1209387, USA.
**Partially supported by Fapesp and CNPq, Brazil.
***Partially supported by Fapesp and CNPq, Brazil.
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BETTIOL, R.G., PICCIONE, P. & SICILIANO, G. DEFORMING SOLUTIONS OF GEOMETRIC VARIATIONAL PROBLEMS WITH VARYING SYMMETRY GROUPS. Transformation Groups 19, 941–968 (2014). https://doi.org/10.1007/s00031-014-9277-6
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DOI: https://doi.org/10.1007/s00031-014-9277-6