On quasi-Clifford Osserman curvature tensors
Author(s) -
Vladica Andrejić,
Katarina Lukić
Publication year - 2019
Publication title -
filomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 34
eISSN - 2406-0933
pISSN - 0354-5180
DOI - 10.2298/fil1904241a
Subject(s) - mathematics , riemann curvature tensor , curvature , duality (order theory) , algebraic number , pure mathematics , ricci curvature , mathematical analysis , geometry
We consider pseudo-Riemannian generalizations of Osserman, Clifford, and the duality principle properties for algebraic curvature tensors and investigate relations between them. We introduce quasi-Clifford curvature tensors using a generalized Clifford family and show that they are Osserman. This allows us to discover an Osserman curvature tensor that does not satisfy the duality principle. We give some necessary and some sufficient conditions for the total duality principle.
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