دورية أكاديمية

A flow approach to the prescribed Gaussian curvature problem in ℍ푛+1.

التفاصيل البيبلوغرافية
العنوان: A flow approach to the prescribed Gaussian curvature problem in ℍ푛+1.
المؤلفون: Li, Haizhong, Zhang, Ruijia
المصدر: Advances in Calculus of Variations; Jul2024, Vol. 17 Issue 3, p521-543, 23p
مصطلحات موضوعية: GAUSSIAN curvature, SMOOTHNESS of functions, HYPERBOLIC spaces, HYPERSURFACES, EQUATIONS, GENERALIZATION
مستخلص: In this paper, we study the following prescribed Gaussian curvature problem: K = f ~ ⁢ (θ) ϕ ⁢ (ρ) α − 2 ⁢ ϕ ⁢ (ρ) 2 + | ∇ ¯ ⁢ ρ | 2 , a generalization of the Alexandrov problem ( α = n + 1 ) in hyperbolic space, where f ~ is a smooth positive function on S n , 휌 is the radial function of the hypersurface, ϕ ⁢ (ρ) = sinh ⁡ ρ and 퐾 is the Gauss curvature. By a flow approach, we obtain the existence and uniqueness of solutions to the above equations when α ≥ n + 1 . Our argument provides a parabolic proof in smooth category for the Alexandrov problem in H n + 1 . We also consider the cases 2 < α ≤ n + 1 under the evenness assumption of f ~ and prove the existence of solutions to the above equations. [ABSTRACT FROM AUTHOR]
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