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The type number of the cosymplectic hypersurfaces of 6-dimensional hermitian submanifolds of the Cayley algebra

机译:Cayley代数的6维Hermitian子流形的渐近超曲面的类型数

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摘要

We study the 6-dimensional oriented submanifolds of the Cayley algebra which are endowed with the Hermitian structure induced by 3-folds vector cross products. We prove that the type number of a cosymplectic hypersurface of a 6-dimensional Hermitian submanifold of the Cayley algebra is at most 3 and that a 6-dimensional Kahler submanifold of the octave algebra has no cosymplectic hypersurfaces with the type number greater than one.
机译:我们研究了Cayley代数的6维定向子流形,这些子流形具有由3倍向量叉积诱导的厄米结构。我们证明了Cayley代数的6维Hermitian子流形的一个渐近超曲面的类型数最多为3个,并且倍频程的6维Kahler子流形不具有类型数大于1的同心超曲面。

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