We show how to associate an ℝ–tree to the set of cut points of a continuum. If X is a continuum without cut points we show how to associate an ℝ–tree to the set of cut pairs of X.
Papasoglu, Panos  1 ; Swenson, Eric L  2
@article{10_2140_agt_2006_6_1759,
author = {Papasoglu, Panos and Swenson, Eric L},
title = {From continua to {\ensuremath{\mathbb{R}}{\textendash}trees}},
journal = {Algebraic and Geometric Topology},
pages = {1759--1784},
year = {2006},
volume = {6},
number = {4},
doi = {10.2140/agt.2006.6.1759},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2006.6.1759/}
}
Papasoglu, Panos; Swenson, Eric L. From continua to ℝ–trees. Algebraic and Geometric Topology, Tome 6 (2006) no. 4, pp. 1759-1784. doi: 10.2140/agt.2006.6.1759
[1] , Cut points and canonical splittings of hyperbolic groups, Acta Math. 180 (1998) 145
[2] , Treelike structures arising from continua and convergence groups, Mem. Amer. Math. Soc. 139 (1999)
[3] , Splittings of finitely generated groups over two-ended subgroups, Trans. Amer. Math. Soc. 354 (2002) 1049
[4] , Hyperbolic groups, from: "Essays in group theory", Math. Sci. Res. Inst. Publ. 8, Springer (1987) 75
[5] , , Topology, Addison-Wesley Publishing Co.,, Reading, MA-London 1961 (1961)
[6] , Topology: a first course, Prentice-Hall (1975)
[7] , , The cyclic boundary JSJ for $\mathrm{CAT}(0)$ groups, Preprint
[8] , A cut point theorem for $\mathrm{CAT}(0)$ groups, J. Differential Geom. 53 (1999) 327
[9] , A cutpoint tree for a continuum, from: "Computational and geometric aspects of modern algebra (Edinburgh, 1998)", London Math. Soc. Lecture Note Ser. 275, Cambridge Univ. Press (2000) 254
[10] , Concerning the Structure of a Continuous Curve, Amer. J. Math. 50 (1928) 167
Cité par Sources :