English

Bowen-Franks groups as conjugacy invariants for $\mathbb{T}^{n}$ automorphisms

Dynamical Systems 2007-05-23 v1

Abstract

The role of generalized Bowen-Franks groups (BF-groups) as topological conjugacy invariants for Tn\mathbb{T}^{n} automorphisms is studied. Using algebraic number theory, a link is established between equality of BF-groups for different automorphisms (BFBF-equivalence) and an identical position in a finite lattice (L\mathcal{L}-equivalence). Important cases of equivalence of the two conditions are proved. Finally, a topological interpretation of the classical BF-group Z\mathbb{Z}% ^{n}/\mathbb{Z}^{n}(I-A) in this context is presented.

Keywords

Cite

@article{arxiv.math/0303185,
  title  = {Bowen-Franks groups as conjugacy invariants for $\mathbb{T}^{n}$ automorphisms},
  author = {P. Martins Rodrigues and J. Sousa Ramos},
  journal= {arXiv preprint arXiv:math/0303185},
  year   = {2007}
}

Comments

15 pages

R2 v1 2026-07-22T16:52:45.522Z