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arXiv 2609.33633math.MGmath.DG

渐近秩处无线性填充的CAT(0)空间

CAT(0) spaces without linear filling at the asymptotic rank

Stephan Stadler

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中文总结 AI 辅助

构造了渐近秩为$\nu$的$(\nu+1)$维CAT(0)空间,其积分$\nu$-循环不满足线性等周不等式,填充函数下界为$c v\log v$。

中文摘要 AI 辅助

对于每个整数$\nu\geq 2$,我们构造一个$(\nu+1)$维、局部紧、测地完备的CAT(0)空间,其渐近秩为$\nu$,但不满足积分$\nu$-循环的线性等周不等式。其填充函数对所有足够大的$v$有下界$c v\log v$。

英文摘要

For every integer $ν\geq 2$, we construct a $(ν+1)$-dimensional, locally compact, geodesically complete CAT(0) space of asymptotic rank $ν$ which does not satisfy a linear isoperimetric inequality for integral $ν$-cycles. Its filling function is bounded below by $c v\log v$ for all sufficiently large $v$.

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