Mathematics – Group Theory
Scientific paper
2006-06-12
Mathematics
Group Theory
View also http://www.epsem.upc.edu/~ventura/ and http://math.nsc.ru/~bogopolski/
Scientific paper
While Dehn functions, D(n), of finitely presented groups are very well studied in the literature, mean Dehn functions are much less considered. M. Gromov introduced the notion of mean Dehn function of a group, $D_{mean}(n)$, suggesting that in many cases it should grow much more slowly than the Dehn function itself. Using only elementary counting methods, this paper presents some computations pointing into this direction. Particularizing them to the case of any finite presentation of a finitely generated abelian group (for which it is well known that $D(n)\sim n^2$ except in the 1-dimensional case), we show that the three variations $D_{osmean}(n)$, $D_{smean}(n)$ and $D_{mean}(n)$ all are bounded above by $Kn(\ln n)^2$, where the constant $K$ depends only on the presentation (and the geodesic combing) chosen. This improves an earlier bound given by Kukina and Roman'kov.
Bogopolski Oleg
Ventura Enric
No associations
LandOfFree
The mean Dehn function of abelian groups does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The mean Dehn function of abelian groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The mean Dehn function of abelian groups will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-648017