We define invariants of two dimensional projectively Anosov
diffeomorphisms. More precisely, we show the space of circles
tangent to the invariant subbundle has a kind of Morse decomposition
and the homotopy type of its one point compactification is
preserved under any homotopy of projectively Anosov diffeomorphisms.
We also calculate the invariants for some examples.
@article{1148392612,
author = {Asaoka, Masayuki},
title = {Invariants of two dimensional projectively Anosov diffeomorphisms},
journal = {Proc. Japan Acad. Ser. A Math. Sci.},
volume = {78},
number = {10},
year = {2002},
pages = { 161-165},
language = {en},
url = {http://dml.mathdoc.fr/item/1148392612}
}
Asaoka, Masayuki. Invariants of two dimensional projectively Anosov diffeomorphisms. Proc. Japan Acad. Ser. A Math. Sci., Tome 78 (2002) no. 10, pp. 161-165. http://gdmltest.u-ga.fr/item/1148392612/