Research

Publications (and preprints) in reversed chronological order.

2026

  1. arXiv
    Variable stepsize distributed forward-backward splitting methods as relocated fixed-point iterations
    Felipe Atenas, Minh N Dao, and Matthew K Tam
    arXiv preprint, 2026
    arXiv
  2. arXiv
    Relocated fixed-point iterations with applications to variable stepsize resolvent splitting
    Felipe Atenas, Heinz H Bauschke, Minh N Dao, and Matthew K Tam
    arXiv preprint (accepted in SIAM Journal on Optimization), 2026
    arXiv

2025

  1. arXiv
    Shadow splitting methods for nonconvex optimisation: epi-approximation, convergence and saddle point avoidance
    Felipe Atenas
    arXiv preprint, 2025
    arXiv
  2. arXiv
    Linear convergence of relocated fixed-point iterations
    Felipe Atenas, Farhana Ahmed Simi, and Matthew K Tam
    arXiv preprint arXiv:2512.12954, 2025
    arXiv
  3. arXiv
    A relaxed version of Ryu’s three-operator splitting method for structured nonconvex optimization
    Jan Harold Alcantara and Felipe Atenas
    arXiv preprint (accepted in MATRIX Annals), 2025
    arXiv
  4. JOGO
    A distributed proximal splitting method with linesearch for locally Lipschitz gradients
    Felipe Atenas, Minh N Dao, and Matthew K Tam
    Journal of Global Optimization, 2025
    DOI arXiv
  5. COAP
    Understanding the Douglas–Rachford splitting method through the lenses of Moreau-type envelopes
    Felipe Atenas
    Computational Optimization and Applications, 2025
    DOI arXiv

2024

  1. JOTA
    Weak convexity and approximate subdifferentials
    Wim Ackooij, Felipe Atenas, and Claudia Sagastizábal
    Journal of Optimization Theory and Applications, 2024
    DOI preprint

2023

  1. SIOPT
    A unified analysis of descent sequences in weakly convex optimization, including convergence rates for bundle methods
    Felipe Atenas, Claudia Sagastizábal, Paulo JS Silva, and Mikhail Solodov
    SIAM Journal on Optimization, 2023
    DOI preprint
  2. JCA
    A bundle-like progressive hedging algorithm
    Felipe Atenas and Claudia Sagastizábal
    Journal of Convex Analysis, 2023
    HAL HTML
  3. UNICAMP
    Proximal decomposition methods for optimization problems with structure
    Felipe Atenas
    PhD thesis, Universidade Estadual de Campinas, 2023
    preprint

2021

  1. MIIR
    Impact of demand response programs in unit-commitment problems in energy optimization
    Caio Costa de Barros Pimentel Luke, Danielle Freitas, Felipe Atenas, Luigi Viola, Tiago Lino Bello, Claudia Sagastizábal, Juan Pablo Luna, André Luiz Diniz, Carlos Henrique Sabóia, and Luı́s Fernando Cerqueira
    Mathematics in Industry Reports, 2021
    DOI