Spaces, with emphasis on rings (i.e., closed loops. To avoid the more exact connotations of the word circle I use ring, trusting the reader do not confuse my meaning with algebraic rings.)
Mappings, with emphasis on the winding number of mappings to a ring
Phase singularities of maps (Parts I and II), with emphasis on the consequences of a nonzero winding number
Technical details on the application of circular logic to biological rhythms
KeywordsTopological Space Target Space Biological Rhythm Phase Singularity Stimulus Time
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