Publications

2026

1. ICLR

   Error Feedback for Muon and Friends

   Kaja Gruntkowska, Alexander Gaponov, Zhirayr Tovmasyan, and 1 more author

   In International Conference on Learning Representations, 2026

   arXiv HTML
2. JNVA

   Revisiting Stochastic Proximal Point Methods: Generalized Smoothness and Similarity

   Zhirayr Tovmasyan, Grigory Malinovsky, Laurent Condat, and 1 more author

   Journal of Nonlinear and Variational Analysis, 2026

   DOI arXiv HTML PDF
3. OPT-ML 2026

   Rennala MVR: Improved Time Complexity for Parallel Stochastic Optimization via Momentum-Based Variance Reduction

   Zhirayr Tovmasyan, Artavazd Maranjyan, and Peter Richtárik

   2026

   arXiv
4. Under Review

   Scaled Momentum Variance Reduction in Non-Euclidean Geometry

   Egor Shulgin, Zhirayr Tovmasyan, Sarit Khirirat, and 1 more author

   2026

   Manuscript under review
5. Under Review

   SCAFFOLD under Hessian Similarity: Sharp Convergence Rates

   Zhirayr Tovmasyan, S. Hanzely, Egor Shulgin, and 2 more authors

   2026

   Manuscript under review

   arXiv