Results 31 to 40 of about 738,602 (182)

Minimal immersion of surfaces in quaternionic projective spaces [PDF]

open access: bronzeTsukuba Journal of Mathematics, 1988
For a minimal immersion of a surface in a quaternionic Kahler manifold a concept of non-degeneracy is defined. Then using a theorem on ellipticdifferentialsystems we show a non-degenerate surface is in a sense generic, and around each point with possible exception of an isolated set of degenerate points we can define a smooth Darboux frame.
Ahmad Zandi
openalex   +4 more sources

A characterization of geodesic hyperspheres of quaternionic projective space [PDF]

open access: bronzeTsukuba Journal of Mathematics, 1997
We study a condition that allows us to characterize geodesichyperspheresamong allrealhypersurfacesofquaternionic projectivespace.
Juan de Dios Pérez
openalex   +4 more sources

Actions of vanishing homogeneity rank on quaternionic-Kaehler projective spaces [PDF]

open access: greenarXiv, 2008
We classify isometric actions of compact Lie groups on quaternionic-K\"ahler projective spaces with vanishing homogeneity rank. We also show that they are not in general quaternion-coisotropic.
Lucio Bedulli, Anna Maria Gori
arxiv   +3 more sources

ON SOME MOMENT MAPS AND INDUCED HOPF BUNDLES IN THE QUATERNIONIC PROJECTIVE SPACE [PDF]

open access: green, 2000
We describe a diagram containing the zero sets of the moment maps associated to the diagonal U(1) and Sp(1) actions on the quaternionic projective space ℍPn. These sets are related both to focal sets of submanifolds and to Sasakian–Einstein structures on
Liviu Ornea, Paolo Piccinni
semanticscholar   +5 more sources

Real submanifolds in a quaternionic projective space [PDF]

open access: yesKodai Mathematical Journal, 1978
The second fundamental form plays a very important role in the study of submanifolds, cf. [1]. From this point of view J. Simons established in [12] a formula for the Laplacian of the length of the second fundamental form, which has enabled us to have a ...
Y. Shibuya
openaire   +4 more sources

SOME CURVATURE CONDITIONS OF n-DIMENSIONAL QR-SUBMANIFOLDS OF (p-1) QR-DIMENSION IN A QUATERNIONIC PROJECTIVE SPACE QP(n+p)/4 [PDF]

open access: bronze, 2003
The purpose of this paper is to study n-dimensional QR-submanifolds of (p - 1) QR-dimension in a quaternionic projective space and especially to determine such submanifolds under the curvature conditions appeared in (5.1) and (5.2).
Jin-Suk Pak, Won-Ho Sohn
openalex   +2 more sources

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