Does $C'\left(\frac{5}{11}\right)$ imply exponential growth? - MathOverflow most recent 30 from http://mathoverflow.net2013-05-20T04:22:09Zhttp://mathoverflow.net/feeds/question/109288http://www.creativecommons.org/licenses/by-nc/2.5/rdfhttp://mathoverflow.net/questions/109288/does-c-left-frac511-right-imply-exponential-growthDoes $C'\left(\frac{5}{11}\right)$ imply exponential growth?Elisabeth Fink2012-10-10T10:59:21Z2012-10-10T15:03:10Z
<p>I came across this rather week small cancellation condition $C'\left(\frac{5}{11}\right)$ of a group $G$. It has been proved that $C'\left(\frac16\right)$ is enough for $G$ to contain free subgroups. I was therefore wondering if $\frac{5}{11}$ is maybe enough to still have exponential growth. </p>
<p>Does anyone know of any related papers or results?</p>
http://mathoverflow.net/questions/109288/does-c-left-frac511-right-imply-exponential-growth/109294#109294Answer by Mark Sapir for Does $C'\left(\frac{5}{11}\right)$ imply exponential growth?Mark Sapir2012-10-10T12:41:25Z2012-10-10T15:03:10Z<p>Every finitely presented group has presentation satisfying $C'(1/5)$. Note that $1/5 < 5/11$. See the book by Olshanskii's book "Geometry of defining relations of groups". </p>