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arXiv 2501.07098math.CO
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负型度量图

Metric graphs of negative type

Rutger Campbell, Kevin Hendrey, Ben Lund, Casey Tompkins

AI总结:

本文研究度量图的负型性质,证明若度量图包含theta子度量则不具有负型,与Gupta等人的结果互补,完整刻画了负型度量图的特征。

摘要:

度量空间的负型不等式与可嵌入性密切相关。Gupta、Newman和Rabinovich的一个结果表明,如果度量图$G$不包含theta子度量作为嵌入,则$G$具有负型。我们证明其逆命题:如果度量图$G$包含一个theta,则它不具有负型。

英文摘要:

The negative type inequalities of a metric space are closely tied to embeddability. A result by Gupta, Newman, and Rabinovich implies that if a metric graph $G$ does not contain a theta submetric as an embedding, then $G$ has negative type. We show the converse: if a metric graph $G$ contains a theta, then it does not have negative type.

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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