References
- Alseda , L. and Ye , X. 1995 . No division and the set of periods for tree maps . Ergodic Theory Dynam. Systems , 15 : 221 – 237 .
- Alseda , L. , Juher , D. and Mumbru , P. 2005 . Periodic behavior on trees . Ergodic Theory Dynam. Systems , 25 ( 5 ) : 1373 – 1400 .
- Alseda , L. , Llibre , J. and Misiurewicz , M. 1989 . Periodic orbits of maps of the Y . Trans. Amer. Math. Soc. , 313 : 475 – 538 .
- Alseda , L. , Llibre , J. and Misiurewicz , M. 2000 . Combinatorial Dynamics and Entropy in Dimension One , Advanced Series in Nonlinear Dynamics Vol. 5 , River Edge, NJ : World Scientific .
- Alseda , L. , Guaschi , J. , Los , J. , Manosas , F. and Mumbru , P. 1997 . Canonical representatives for patterns of tree maps . Topology , 36 : 1123 – 1153 .
- Baldwin , S. 1991 . An extension of Sharkovskii's theorem to the n-od . Ergodic Theory Dynam. Systems , 11 : 249 – 271 .
- Bernhardt , C. 2003 . A proof of Sharkovsky's theorem . J. Difference Equ. Appl. , 9 ( 3–4 ) : 373 – 379 .
- Bernhardt , C. 2006 . Vertex maps for trees: Algebra and periods of periodic orbits . Discrete Contin. Dyn. Syst. , 14 ( 3 ) : 399 – 408 .
- Block , L.S. and Coppel , W.A. 1992 . Dynamics in One Dimension , Lecture Notes in Mathematics Vol. 1513 , Berlin : Springer .
- Sharkovsky , A.N. 1964 . Co-existence of the cycles of a continuous mapping of the line onto itself . Ukrain. Math. Zh. , 16 ( 1 ) : 61 – 71 .