Almost paracontact almost paracomplex Riemannian manifolds as extensions of 2-dimensional space-forms
Acta mathematica Universitatis Comenianae, Tome 91 (2022) no. 1, pp. 69-79
Mancho Manev; Veselina Tavkova; Mancho Manev; Veselina Tavkova. Almost paracontact almost paracomplex Riemannian manifolds as extensions of 2-dimensional space-forms. Acta mathematica Universitatis Comenianae, Tome 91 (2022) no. 1, pp. 69-79. http://geodesic.mathdoc.fr/item/AMUC_2022_91_1_a5/
@article{AMUC_2022_91_1_a5,
     author = {Mancho Manev and Veselina Tavkova and Mancho Manev and Veselina Tavkova},
     title = { Almost paracontact almost paracomplex {Riemannian} manifolds as extensions of 2-dimensional space-forms},
     journal = {Acta mathematica Universitatis Comenianae},
     pages = {69--79},
     year = {2022},
     volume = {91},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/AMUC_2022_91_1_a5/}
}
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Almost paracontact Riemannian manifolds of the lowest dimension are studied, whose paracontact distributions are equipped with an almost paracomplex structure. These manifolds are constructed as a product of a real line and a 2-dimensional Riemannian space-form. Their metric is obtained in two ways: as a cone metric and as a hyperbolic extension of the metric of the underlying paracomplex 2-manifold. The resulting manifolds are studied and characterised in terms of the used classification and their curvature properties.