On Dehn functions of free products of groups

On Dehn functions of free products of groups
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Proc. Amer. Math. Soc. 127 (1999), 1885-1891

DOI: https://doi.org/10.1090/S0002-9939-99-04579-7

Published electronically: March 1, 1999

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In this article we show that the Dehn function of a nontrivial free product of groups is equivalent to its subnegative closure.

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