Results 71 to 80 of about 277 (149)

Cycle-parallel real hypersurfaces of quaternionic projective space [PDF]

open access: yesTsukuba Journal of Mathematics, 1993
A hypersurface \(M\) of a Riemannian manifold \(A\) is said to be cyclic- parallel, if its shape operator \(A\) satisfies \({\mathfrak S} \langle (\nabla_ X A)Y, Z\rangle = 0\) for all \(X\), \(Y\), \(Z\) tangent to \(M\) where \(\mathfrak S\) denotes the cyclic sum with respect to \(X\), \(Y\), \(Z\). In the paper the following is proved: Let \(N\) be
openaire   +2 more sources

Yang-Mills theories in curved space-times [PDF]

open access: yes, 1981
Multi-instanton solutions of four dimensional HP(^1) models are sought, and a singular two instant solution in flat Euclidean space time is constructed.
Dolan, B, Dolan, Brian P.
core  

An inclusive immersion into a quaternionic manifold and its invariants [PDF]

open access: yes, 2017
We introduce a quaternionic invariant for an inclusive immersion into a quaternionic manifold, which is a quaternionic object corresponding to the Willmore functional.
79795   +3 more
core   +2 more sources

Space Forms of Grassmann Manifolds [PDF]

open access: yes, 1963
We shall consider the classification problem for space forms of (Riemannian manifolds which are covered by) real, complex, and quaternionic Grassmann manifolds.
Joseph A. Wolf
core   +1 more source

Equivariant harmonic maps of the complex projective spaces into the quaternion projective spaces

open access: yesEquivariant harmonic maps of the complex projective spaces into the quaternion projective spaces
We classify equivariant harmonic maps of the complex projective spaces CPm into the quaternion projective spaces. To do this, we employ differential geometry of vector bundles and connections. When the domain is the complex projective line, we have one parameter family of those maps. (This result is already shown in [2]and [4]in other ways).
Isami Koga, Yasuyuki Nagatomo
openaire   +2 more sources

Reflection group of the quaternionic Lorentzian Leech lattice [PDF]

open access: yes, 2007
We study a second example of the phenomenon studied in the article “The complex Lorentzian Leech lattice and the bimonster.” We find 14 roots in the automorphism group of the quaternionic Lorentzian Leech lattice L that form the Coxeter diagram given by ...
Basak, Tathagata
core   +1 more source

Factorization of quaternionic polynomials of bi-degree (n,1). [PDF]

open access: yesBeitr Algebra Geom, 2023
Lercher J   +3 more
europepmc   +1 more source

Actions of Vanishing Homogeneity Rank on Quaternionic-Kähler Projective Spaces

open access: yesJournal of Lie Theory, 2008
We classify isometric actions of compact Lie groups on quaternionic-Kähler projective spaces with vanishing homogeneity rank. We also show that they are not in general quaternion-coisotropic.
BEDULLI, LUCIO, GORI A.
openaire   +5 more sources

Generalized Twistor Spaces for Hyperkahler and Quaternionic Kahler Manifolds [PDF]

open access: yes, 2013
Generalized complex geometry is a newly emerging field that unites two areas of geometry, symplectic and complex, revealing surprising new aspects in both.
Glover, Rebecca
core   +2 more sources

Parallel Kahler submanifolds of Quaternionic Kahler Symmetric Spaces [PDF]

open access: yes, 2005
The non totally geodesic parallel $2n$-dimensional Kahler submanifolds of the $n$-dimensional quaternionic projective space were classified by K. Tsukada.
STEFANO MARCHIAFAVA   +5 more
core  

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