Abstract
The classification of degenerate and non-degenerate submanifolds, and CR-submanifolds of an almost para-Hermitian manifold of dimension four is obtained, and examples from each class are shown.
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Etayo, F., Fioravanti, M. & Trías, U.R. On the Submanifolds of an Almost Para-Hermitian Manifold. Acta Mathematica Hungarica 85, 277–286 (1999). https://doi.org/10.1023/A:1006779919681
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DOI: https://doi.org/10.1023/A:1006779919681