Dynamical Teichmüller spaces for rational and transcendental maps
Dr. Lukas Geyer (Dept. of Mathematical Sciences, MSU)
04/01/2024 4:10pm
Abstract:
Every smooth orientable surface can be endowed with a complex structure, turning it
into a Riemann surface. However, this complex structure is usually not unique, and
beginning with Riemann in the 1830s, mathematicians have been studying the space of
conformal structures of a surface, called its moduli space. It turns out that moduli
space is a quotient of Teichmüller space, which has a very nice structure: It is a
complex manifold and carries a natural metric. Since its introduction in the early
20th century, Teichmüller spaces have been very successful in studying the geometry
and deformation of surfaces, and versions of it have been introduced as tools to study
deformations in other contexts such as Kleinian groups and complex dynamics.
In this talk, I will review some basics of the classical theory and explain the construction,
properties, and applications of dynamical moduli and Teichmüller spaces for rational
maps, introduced by McMullen and Sullivan in the 1980s and 1990s. Lastly, if time
allows, I will talk about some recent work related to dynamical Teichmüller spaces
for entire transcendental maps.