## Abstract

After a short review of the classical theory of homeomorphisms

of the circle and smoothness of conjugacy to a rigid rotation for the case of

differentiable maps, we describe some results for the case when the homeomorphism is everywhere differentiable with the exception of one or two points.

The emphasis is given on the case of two singularities where the results of [3]

and [4] are stated.

of the circle and smoothness of conjugacy to a rigid rotation for the case of

differentiable maps, we describe some results for the case when the homeomorphism is everywhere differentiable with the exception of one or two points.

The emphasis is given on the case of two singularities where the results of [3]

and [4] are stated.

Original language | English |
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Number of pages | 8 |

Journal | Department of Mathematics, University of York, |

Publication status | Unpublished - 2011 |

## Keywords

- Networks and Nonlinear Dynamics, Pure Mathematics