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JOURNALS // Itogi Nauki i Tekhniki. Sovremennaya Matematika i ee Prilozheniya. Tematicheskie Obzory // Archive

Itogi Nauki i Tekhniki. Sovrem. Mat. Pril. Temat. Obz., 2020 Volume 180, Pages 31–40 (Mi into638)

The space of affine connections of an almost Hermitian manifold

Yu. A. Gorginyan, L. A. Ignatochkina

Moscow State Pedagogical University

Abstract: We consider affine connections determined by an almost Hermitian structure of a smooth manifold. We prove that the affine space of connections considered has dimension $12$ if and only if the Lie form of the almost Hermitian structure is nonzero. We find connections that define post-Riemannian geometries and almost Hermitian connections in the class $W_4$. We examine a conformal transformation of an almost Hermitian structure and an affine mapping of connections generated by this transformation and find a connection invariant under this mapping.

Keywords: affine connection, almost Hermitian manifold, conformal transformation.

UDC: 514.76

MSC: 53B05, 51E15

DOI: 10.36535/0233-6723-2020-180-31-40



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