Forty years of unimodal dynamics: On theoccasion of Artur Avila winning the Brin Prize
Forty years of unimodal dynamics: On theoccasion of Artur Avila winning the Brin Prize
复制标题
四十年的单峰动力学:阿图尔·阿维拉 (Artur Avila) 荣获布林奖之际
DOI:
10.3934/jmd.2012.6.183
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发表时间:
2012
影响因子:
1.1
通讯作者:
M. Lyubich
中科院分区:
文献类型:
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作者:
M. Lyubich
The field of one-dimensional dynamics, real and complex, emerged from obscurity in
the 1970s and has been intensely explored ever since. It
combines the depth and complexity of chaotic phenomena with a
chance to fully understand it in probabilistic terms: to describe the
dynamics of typical orbits for typical maps. It also revealed
fascinating universality features that
had never been noticed before. The interplay between real and complex
worlds illuminated by beautiful pictures of fractal structures adds
special charm to the field.
By now, we have reached a full probabilistic understanding of real
analytic unimodal dynamics, and Artur Avila has been the key player in
the final stage of the story (which roughly started with the new
century). To put his work into perspective, we will begin with an
overview of the main events in the field from the 1970s up to the end
of the last century. Then we will describe Avila's work on unimodal
dynamics that effectively closed up the field. We will finish by
describing his results in the closely related direction, the geometry
of Feigenbaum Julia sets, including a recent construction of a new
class of Julia sets of positive area.