Papers, Preprints, and Talks

Horospherically Convex Optimization on Hadamard Manifolds Part I: Analysis and Algorithms 2025
C Criscitiello, J Kim
Talks/Slides/Posters (click to expand).

• EUROPT 2024: Slides

Synchronization on circles and spheres with nonlinear interactions 2024
C Criscitiello, Q Rebjock, AD McRae, N Boumal

Curvature and complexity: Better lower bounds for geodesically convex optimization 2023
C Criscitiello, N Boumal
Talks/Slides/Posters (click to expand).

• COLT 2023: Poster and Slides

Open problem: polynomial linearly-convergent method for g-convex optimization? 2023
C Criscitiello, D Martínez-Rubio, N Boumal
Talks/Slides/Posters (click to expand).

• COLT 2023 Open Problems session: Slides

Accelerated Riemannian Min-Max Optimization Ensuring Bounded Geometric Penalties 2023
D Martínez-Rubio, C Roux, C Criscitiello, S Pokutta

Negative curvature obstructs acceleration for strongly geodesically convex optimization, even with exact first-order oracles 2022
C Criscitiello, N Boumal
Talks/Slides/Posters (click to expand).

• ICCOPT 2022: Slides

• COLT 2022: Slides

• Curves and Surfaces 2022: Abstract and Slides

An accelerated first-order method for non-convex optimization on manifolds 2022
C Criscitiello, N Boumal

Efficiently escaping saddle points on manifolds 2019
C Criscitiello, N Boumal
Talks/Slides/Posters (click to expand).

• NeurIPS 2019: Poster