An algebraic annulus theorem

G.P. Scott, G.A. Swarup
2000 Pacific Journal of Mathematics  
We present an extension of Dunwoody's theory of tracks and use it to prove an analogue of the annulus theorem for hyperbolic groups.
doi:10.2140/pjm.2000.196.461 fatcat:gvcqrl5skngndm4w4ojcuzklxy