arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.07943math.DG
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Representation formula for discrete indefinite affine spheres

Shimpei Kobayashi, Nozomu Matsuura

英文摘要:

We present a representation formula for discrete indefinite affine spheres via loop group factorizations. This formula is derived from the Birkhoff decomposition of loop groups associated with discrete indefinite affine spheres. In particular we show that a discrete indefinite improper affine sphere can be constructed from two discrete plane curves.

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