Marcelo S. Atallah

activity

20202026

most citedHamiltonian no-torsion

4 citations · 4 across the 9 of their papers we have counts for

collaborators

Showing 2025Show all

2 papers · 1 filter

math.SG2025

On the spectral diameter of the Grassmannians

Habib Alizadeh, Marcelo S. Atallah, Dylan Cant +1

The diameter of the spectral pseudometric on the universal cover of the Hamiltonian diffeomorphism group of $Gr (2, p)$ is shown to be finite whenever $p$ is a prime number.…

math.SG2025

$C^{0}$ -rigidity of the Hamiltonian diffeomorphism group of symplectic rational surfaces

Marcelo Atallah, Cheuk Yu Mak, Weiwei Wu

We investigate the $C^{0}$ -topology of the group of symplectic diffeomorphisms of positive symplectic rational surfaces. For all but a few exceptions, we prove that the group of Hami…

On the spectral diameter of the Grassmannians

C0-rigidity of the Hamiltonian diffeomorphism group of symplectic rational surfaces

$C^{0}$ -rigidity of the Hamiltonian diffeomorphism group of symplectic rational surfaces