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- W4205411654 abstract "In this paper, we investigate Einstein hypersurfaces of the warped product $Itimes_{f}mathbb{Q}^{n}(c)$, where $mathbb{Q}^{n}(c)$ is a space form of curvature $c$. We prove that $M$ has at most three distinct principal curvatures and that it is locally a multiply warped product with at most two fibers. We also show that exactly one or two principal curvatures on an open set imply constant sectional curvature on that set. For exactly three distinct principal curvatures this is no longer true, and we classify such hypersurfaces provided it does not have constant sectional curvature and a certain principal curvature vanishes identically." @default.
- W4205411654 created "2022-01-26" @default.
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- W4205411654 date "2022-03-01" @default.
- W4205411654 modified "2023-10-18" @default.
- W4205411654 title "On Einstein hypersurfaces of <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML altimg=si1.svg><mml:mi>I</mml:mi><mml:msub><mml:mrow><mml:mo>×</mml:mo></mml:mrow><mml:mrow><mml:mi>f</mml:mi></mml:mrow></mml:msub><mml:msup><mml:mrow><mml:mi mathvariant=double-struck>Q</mml:mi></mml:mrow><mml:mrow><mml:mi>n</mml:mi></mml:mrow></mml:msup><mml:mo stretchy=false>(</mml:mo><mml:mi>c</mml:mi><mml:mo stretchy=false>)</mml:mo></mml:math>" @default.
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- W4205411654 doi "https://doi.org/10.1016/j.geomphys.2021.104448" @default.
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