Abstract (EN):
In this paper we complete the analysis of the stability of periodic points of piecewise isometric systems which are defined in the entire Euclidean space. The case which we focus on here is when the determinant of the matrix Id-R_w is zero, where R_w is the linear part of the return map generated by the periodic point whose coding is made of a countable repetition of the block w. The case when determinant of Id-R_w is non-zero was studied in Mendes & Nicol [2004] but still the statement is included here for completeness sake.
Language:
Portuguese
Type (Professor's evaluation):
Scientific