We show that a Lagrangian submanifold of a complex space form attaining equality in the inequality obtained by Oprea in [8], must be totally geodesic.
@article{bwmeta1.element.doi-10_2478_s11533-008-0064-2,
author = {Franki Dillen and Johan Fastenakels},
title = {On an inequality of Oprea for Lagrangian submanifolds},
journal = {Open Mathematics},
volume = {7},
year = {2009},
pages = {140-144},
zbl = {1176.53030},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0064-2}
}
Franki Dillen; Johan Fastenakels. On an inequality of Oprea for Lagrangian submanifolds. Open Mathematics, Tome 7 (2009) pp. 140-144. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0064-2/
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