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FIELD
Math:Geometry
DATE
Sep 26 (Fri), 2025
TIME
10:00 ~ 12:00
PLACE
8101
SPEAKER
Dinamarca, Leonardo
HOST
Nyberg Brodda, Carl-Fredrik
INSTITUTE
Pontificia Universidad Católica de Chile / KIAS
TITLE
Quadratic growth for the derivatives of iterates of interval diffeomorphisms with only parabolic fixed points
ABSTRACT
20 years ago, in the seminal work of Polterovich and Sodin shows a (short but) surprising result: if the iterates of derivatives of a diffeomorphisms of the interval of class C^2 growth are subexponential, then it grows at most quadratic. In this talk we will discuss a stronger result that asserts that the lim_n max Df^n / n^2 exists. We briefly discuss the modern tools who allow us to obtain the results. Joint work with Andrés Navas.
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