Publications

Journal articles

• Flexible GMRES converges in two phases
  with S. Güttel. SIAM Journal on Scientific Computing, to appear. 

• Nearest matrix with multiple eigenvalues by Riemannian optimization
  with V. Noferini, F. Poloni. IMA Journal of Numerical Analysis, 2026. 

• Finding the nearest Ω-stable pencil with Riemannian optimization
  with V. Noferini. Numerical Algorithms, 2025. 

• Riemann-Oracle: a general-purpose Riemannian optimizer to solve nearness problems in matrix theory
  with M. Gnazzo, V. Noferini, F. Poloni. Foundations of Computational Mathematics, 2025.

• A Riemannian optimization method to compute the nearest singular pencil
  with F. Dopico, V. Noferini. SIAM Journal on Matrix Analysis and Applications, 2024. 

• Perturbation theory of transfer function matrices
  with V. Noferini, J. Pérez, M. C. Quintana. SIAM Journal on Matrix Analysis and Applications, 2023.

Preprints

• Singular vector spaces for computing the structured distance to singularity
  arXiv, 2026.

• Sketch-and-Restart: Randomized Sketching in Quadrature-Based Restarting for Matrix Functions
  with S. Güttel and J. Liu. arXiv, 2026.

Dissertations

• Doctoral thesis: Eigenstructure of polynomial and rational matrices: perturbation theory and nearness problems
  Aalto University, 2025. Supervised by Prof. Vanni Noferini.

• Master's thesis: Solving Systems of 3 Equations in 3 Variables via Resultants
  Aalto University, 2021. Supervised by Prof. Vanni Noferini.