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The Dehn Function of PSL2(Z[1/p])

Authors :
Jennifer Taback
Source :
Geometriae Dedicata. 102:179-195
Publication Year :
2003
Publisher :
Springer Science and Business Media LLC, 2003.

Abstract

We show that PSL2(Z[1/p]) admits a combing with bounded asynchronous width, and use this combing to show that PSL2(Z[1/p]) has an exponential Dehn function. As a corollary, PSL2(Z[1/p]) has solvable word problem and is not an automatic group.

Details

ISSN :
00465755
Volume :
102
Database :
OpenAIRE
Journal :
Geometriae Dedicata
Accession number :
edsair.doi...........e82f69106df34ceaad3fc6aefde8d243
Full Text :
https://doi.org/10.1023/b:geom.0000006508.01626.a4