Structure of group invariants of a quasiperiodic flow

LF Bakker - arXiv preprint math/0206300, 2002 - arxiv.org
The multiplier representation of the generalized symmetry group of a quasiperiodic flow on
the n-torus defines, for each subgroup of the multiplier group of the flow, a group invariant of …

[PDF][PDF] Rigidity of projective conjugacy for quasiperiodic flows of Koch type

LF Bakker - Colloquium Mathematicum, 2008 - pdfs.semanticscholar.org
For quasiperiodic flows of Koch type, we exploit an algebraic rigidity of an equivalence
relation on flows, called projective conjugacy, to algebraically characterize the deviations …

Semiconjugacy of quasiperiodic flows and finite index subgroups of multiplier groups

L Bakker - arXiv preprint math/0408158, 2004 - arxiv.org
It will be shown that if $\phi $ is a quasiperiodic flow on the $ n $-torus that is algebraic, if
$\psi $ is a flow on the $ n $-torus that is smoothly conjugate to a flow generated by a …

The Multiplier Group of a Quasiperiodic Flow

LF Bakker - arXiv preprint math/0509023, 2005 - arxiv.org
As an absolute invariant of smooth conjugacy, the multiplier group described the types of
space-time symmetries that the flow has, and for a quasiperiodic flow on the $ n $-torus, is …

Quasiperiodic Flows and Algebraic Number Fields

LF Bakker - arXiv preprint math/0307389, 2003 - arxiv.org
We classify a quasiperiodic flow as either algebraic or transcendental. For an algebraic
quasiperiodic flow on the n-torus, we prove that an absolute invariant of the smooth …

THE KATOK-SPATZIER CONJECTURE, GENERALIZED SYMMETRIES, AND EQUILIBRIUM-FREE FLOWS.

LF Bakker - Communications on Pure & Applied Analysis, 2013 - search.ebscohost.com
The nature and the classification of equilibrium-free flows on compact manifolds without
boundary that possess nontrivial generalized symmetries are investigated. Such flows are …