Weierstraß-type representation of affine spheres

Weierstraß-type representation of affine spheres
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DOI:
10.1007/bf02941473
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发表时间:
2001-12
期刊:
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
影响因子:
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通讯作者:
J. Dorfmeister;U. Eitner
J. Dorfmeister;U. Eitner
中科院分区:
其他
文献类型:
--
作者:
J. Dorfmeister;U. Eitner

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仿射球讨论的上下文中的循环组。我们表明,每个仿射球可以通过求解两个常微分方程,然后应用广义Birkhoff分解定理(我们证明在附录)。的常微分方程的系数的几何解释。最后将该方法应用于所有直纹曲面的构造。
Affine spheres are discussed in the context of loop groups. We show that every affine sphere can be obtained by solving two ordinary differential equations followed by an application of a generalized Birkhoff Decomposition Theorem (which we proof in the Appendix). A geometric interpretation of the coefficients of the ODE is given. Finally the method is applied to construct all ruled surfaces.