Abstract
In § 8 of Chapter 2 we presented in detail the classical Minkowski Theorem on the problem of existence and uniqueness of a closed convex hypersurface with prescribed Gaussian curvature K(η) in (n + l)-dimensional Euclidean space En+1. Here K(η) is a positive continuous function on the unit hypersphere Sn ⊂ En+1, which is centered at the origin of En+1. The Minkowski problem is the problem of existence and uniqueness of a closed convex hypersurface F with Gaussian curvature K(η) at a point x with exterior unit normal η. Here we do not assume that F is a regular hypersurface. Therefore the Gaussian curvature of a hypersurface F at a point x ∈ F is defined as the limit of the ratio \( \frac{{w\left( G \right)}}{{w\left( G \right)}} \) as domain G shrinks to the point x, where σ(G) is the area of G and ω(G) is the area of the spherical image of G. Both set functions σ(G) and ω(G) are defined in §§ 5, 8. This definition of Gaussian curvature does not assume the Cm-smoothness (m ≥ 2) of a convex hypersurface.
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© 1994 Springer-Verlag Berlin Heidelberg
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Bakelman, I.J. (1994). Smooth Elliptic Solutions of Monge-Ampere Equations. In: Convex Analysis and Nonlinear Geometric Elliptic Equations. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-69881-1_6
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DOI: https://doi.org/10.1007/978-3-642-69881-1_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-69883-5
Online ISBN: 978-3-642-69881-1
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