We consider the Anti-de Sitter space $H_1^3$ equipped with Berger-like metrics, that deform the standard metric of $H_1^3$ in the direction of the hyperbolic Hopf vector field. Helix surfaces are the ones forming a constant angle with such vector field. After proving that these surfaces have (any) constant Gaussian curvature, we achieve their explicit local description in terms of a one-parameter family of isometries of the space and some suitable curves. These curves turn out to be general helices, which meet at a constant angle the fibers of the hyperbolic Hopf fibration.
Helix surfaces for Berger-like metrics on the anti-de Sitter space
Giovanni Calvaruso
;Lorenzo Pellegrino;
2024-01-01
Abstract
We consider the Anti-de Sitter space $H_1^3$ equipped with Berger-like metrics, that deform the standard metric of $H_1^3$ in the direction of the hyperbolic Hopf vector field. Helix surfaces are the ones forming a constant angle with such vector field. After proving that these surfaces have (any) constant Gaussian curvature, we achieve their explicit local description in terms of a one-parameter family of isometries of the space and some suitable curves. These curves turn out to be general helices, which meet at a constant angle the fibers of the hyperbolic Hopf fibration.File in questo prodotto:
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