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TOTALLY REAL MINIMAL SURFACES WITH NON-CIRCULAR ELLIPSE OF CURVATURE IN THE NEARLY KÄHLER S6

Published online by Cambridge University Press:  01 December 1997

JOHN BOLTON
Affiliation:
Department of Mathematical Sciences, University of Durham, South Road, Durham DH1 3LE
LUC VRANCKEN
Affiliation:
Departement Wiskunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium
LYNDON M. WOODWARD
Affiliation:
Department of Mathematical Sciences, University of Durham, South Road, Durham DH1 3LE
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Abstract

In [2] we discussed almost complex curves in the nearly Kähler S6. These are surfaces with constant Kähler angle 0 or π and, as a consequence of this, are also minimal and have circular ellipse of curvature. We also considered minimal immersions with constant Kähler angle not equal to 0 or π, but with ellipse of curvature a circle. We showed that these are linearly full in a totally geodesic S5 in S6 and that (in the simply connected case) each belongs to the S1-family of horizontal lifts of a totally real (non-totally geodesic) minimal surface in [Copf ]P2. Indeed, every element of such an S1-family has constant Kähler angle and in each family all constant Kähler angles occur. In particular, every minimal immersion with constant Kähler angle and ellipse of curvature a circle is obtained by rotating an almost complex curve which is linearly full in a totally geodesic S5.

Type
Notes and Papers
Copyright
The London Mathematical Society 1997

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