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arXiv 2604.02407math.OCcs.SYeess.SY
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规范空间中的缩放相对图

Scaled Relative Graphs in Normed Spaces

University of British Columbia(不列颠哥伦比亚大学)

Alberto Padoan

AI总结:

本文将Ryu等人在希尔伯特空间中的缩放相对图框架扩展到规范空间,引入非对称的正则配对,产生方向角和方向SRG,证明其能验证关键算子性质,并推导了缩放、逆、加法和组合的SRG计算规则。

摘要:

本文将缩放相对图(SRG)框架从希尔伯特空间扩展到规范空间。我们的扩展用正则配对替代内积,其非对称性导致方向角和方向SRG。方向SRG被证明能提供几何包含测试,验证关键算子性质,包括收缩性和单调性。还推导了SRG在缩放、逆、加法和组合下的计算规则。通过数值示例,包括贝尔曼算子的图形收缩证书,展示了该理论。

英文摘要:

The paper extends the Scaled Relative Graph (SRG) framework of Ryu, Hannah, and Yin from Hilbert spaces to normed spaces. Our extension replaces the inner product with a regular pairing, whose asymmetry gives rise to directional angles and, in turn, directional SRGs. Directional SRGs are shown to provide geometric containment tests certifying key operator properties, including contraction and monotonicity. Calculus rules for SRGs under scaling, inversion, addition, and composition are also derived. The theory is illustrated by numerical examples, including a graphical analysis of the contractivity of Bellman operators using directional SRGs.

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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