46 citations · 164 across the 25 of their papers we have counts for
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math.DS2021
On proper extensions of the conformal group of sphere diffeomorphisms
Ulisses Lakatos, Fábio Armando Tal
In this paper, we prove that any group of diffeomorphisms acting on the 2-sphere and properly extending the conformal group of Möbius transformations must be at least 4-transitive…
math.DS2021★ 1 cited
Mathers regions of instability for annulus diffeomorphisms
Salvador Addas-Zanata, Fabio Armando Tal
Let be a diffeomorphism of the closed annulus that preserves orientation and the boundary components, and be a lift of to its univer…