Title	Fibonacci and quasi-symmetric phyllotaxis
Creator	Gole, Christophe
Publisher	Banff International Research Station for Mathematical Innovation and Discovery
Date Issued	2017-12-14T09:36
Description	The first phyllotaxis pattern formation model was proposed in 1868 by Schwendener, and consists of stacking one disk at a time on the surface of a cylinder. As simple as it is, this model exhibits plenty of geometric and dynamical richness, which are best revealed by systematic computer simulations. It helps explain the predominance of Fibonacci phyllotaxis, where the number of helixes (parastichies) in the two transverse families are successive Fibonacci numbers. It also helped us the mechanisms of formation of a type of pattern never mentioned in the literature, that we called Quasi Symmetric. In these patterns, often characterized by rapid parameter changes, the two parastichies numbers tend to be close to one another. Now go and count parastichies on a strawberry….
Extent	32 minutes
Subject	Mathematics; Biology and other natural sciences; Mathematical biology
Type	Moving Image
File Format	video/mp4
Language	eng
Notes	Author affiliation: Smith College
Series	BIRS Workshop Lecture Videos (Banff, Alta)
Date Available	2018-07-06
Provider	Vancouver : University of British Columbia Library
Rights	Attribution-NonCommercial-NoDerivatives 4.0 International
DOI	10.14288/1.0368827
URI	http://hdl.handle.net/2429/66431
Affiliation	Non UBC
Peer Review Status	Unreviewed
Scholarly Level	Faculty
Rights URI	http://creativecommons.org/licenses/by-nc-nd/4.0/
Aggregated Source Repository	DSpace

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Fibonacci and quasi-symmetric phyllotaxis Gole, Christophe

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