2102.05861
ON THE STRONG CONVERGENCE OF A GENERAL ITERATIVE ALGORITHM
Ramzi May, Zahra Bin Ali
correcthigh confidence
- Category
- Not specified
- Journal tier
- Specialist/Solid
- Processed
- Sep 28, 2025, 12:55 AM
- arXiv Links
- Abstract ↗PDF ↗
Audit review
The paper proves strong convergence of the perturbed hybrid projection algorithm (HPA) under (i)–(iii) and (h1)/(h2) via an implicit–explicit comparison and a Fejér-type energy inequality that avoids non-vanishing drift terms; despite minor typos (δ0* and an “→1” that should be “→0” or α_{n+1}/α_n→1), the argument is complete and correct. By contrast, the model’s one-step estimate introduces a persistent term proportional to α_n‖A(q*)‖, which prevents direct application of the almost-supermartingale lemma; the proposed ‘auxiliary implicit sequence’ fix is not actually developed, leaving a gap. See the statement of Theorem 4.1 and its proof, including Lemma 3.2 and the key estimates for yn and xn−yn, in the paper’s Sections 3–4 .
Referee report (LaTeX)
\textbf{Recommendation:} minor revisions
\textbf{Journal Tier:} specialist/solid
\textbf{Justification:}
A solid and careful synthesis of implicit–explicit techniques yields a general strong-convergence theorem covering multiple known schemes with perturbations. The strategy and tools are standard but well orchestrated. Only minor typographical corrections are required to avoid confusion about parameter ranges and ratio conditions.