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arXiv 2104.11552math.MGmath.DGmath.FA
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Minkowski赋值的不动点

Fixed points of Minkowski valuations

Oscar Ortega-Moreno, Franz E. Schuster

摘要:

证明了对于任意充分正则的偶Minkowski赋值$Φ$,若它是齐次的且与刚性运动交织,则存在单位球的邻域,其中球是不动点问题$Φ^2 K = αK$的唯一解.这显著地推广了Ivaki关于投影体的结果,并通过Lutwak-Schneider类约化技术,提出了Petty投影不等式的一种新方法。

英文摘要:

It is shown that for any sufficiently regular even Minkowski valuation $Φ$ which is homogeneous and intertwines rigid motions, there exists a neighborhood of the unit ball, where balls are the only solutions to the fixed-point problem $Φ^2 K = αK$. This significantly generalizes results by Ivaki for projection bodies and suggests, via the Lutwak--Schneider class reduction technique, a new approach to Petty's conjectured projection inequality.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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