MANIFOLDS ADMITTING A STRUCTURE OF FOUR DIMENTIONAL ALGEBRA OF AFFINORS

TitleMANIFOLDS ADMITTING A STRUCTURE OF FOUR DIMENTIONAL ALGEBRA OF AFFINORS
Publication TypeJournal Article
Year of Publication2016
AuthorsHristov A, Kostadinov G
JournalAnnuaire de l’Université de Sofia “St. Kliment Ohridski”. Faculté de Mathématiques et Informatique
Volume103
Pagination89-95
ISSN0205-0808
Keywordsaffinely connected manifold, algebra of fiber-preserving operators, Four dimentional associative algebra
Abstract
The purpose of this note is to describe some properties of manifolds endowed with an almost tangent structure $T, T^2 = 0$ and an almost complex structure $J, J^2 = {−E}, E = id$. 
We consider a linear connection $\nabla$ on $N$, which is compatible with the algebraic structure, i.e. $\nabla J = 0, \nabla T = 0$. The existence of ideals in corresponding algebra implies the existence of autoparallel submanifolds of N.
2010 MSC

53C15, 58A30, 53C07

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