等周谱密度
Density of isoperimetric spectra
摘要:
证明了当k > 1时,群的k维等周指数集在区间[1,\infty)中是稠密的.因此,在等周谱中没有更高维的格罗莫夫能隙(1,2)。
英文摘要:
We show that the set of k-dimensional isoperimetric exponents of finitely presented groups is dense in the interval [1, \infty) for k > 1. Hence there is no higher-dimensional analogue of Gromov's gap (1,2) in the isoperimetric spectrum.
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