TY - JOUR
T1 - A note on a modified version of the Poincaré-Birkhoff theorem
AU - Campos, Juan
AU - Margheri, Alessandro
AU - Martins, Rogério Ferreira
AU - Rebelo, Carlota
PY - 2004/8/15
Y1 - 2004/8/15
N2 - We show, by constructing a suitable area preserving homeomorphism without fixed points, that the twist condition considered at zero and at infinity in a recent modified version of the Poincaré-Birkhoff fixed point theorem cannot be interchanged.
AB - We show, by constructing a suitable area preserving homeomorphism without fixed points, that the twist condition considered at zero and at infinity in a recent modified version of the Poincaré-Birkhoff fixed point theorem cannot be interchanged.
KW - Poincaré-Birkoff fixed point theorem
UR - http://www.scopus.com/inward/record.url?scp=3042587676&partnerID=8YFLogxK
U2 - 10.1016/j.jde.2004.03.022
DO - 10.1016/j.jde.2004.03.022
M3 - Article
SN - 0022-0396
VL - 203
SP - 55
EP - 63
JO - Journal Of Differential Equations
JF - Journal Of Differential Equations
IS - 1
ER -