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2107.04159

FLOCKING FORMATION AND STABILIZER OF BOOSTED COOPERATIVE CONTROL ON A SPHERE

Sun-Ho Choi, Dohyun Kwon, Hyowon Seo

correcthigh confidence
Category
Not specified
Journal tier
Specialist/Solid
Processed
Sep 28, 2025, 12:56 AM

Audit review

The paper proves global well-posedness, exact energy dissipation, LaSalle-based convergence to a largest invariant set, and a full classification of asymptotic configurations (rendezvous, formation, uniform deployment) with sharp parameter/energy thresholds (Theorems 1–2) and precise characterization of the zero-dissipation set (Proposition 3.7) . It also defines the alignment measure and shows asymptotic velocity alignment via the dissipation identity and LaSalle’s invariance principle . By contrast, the candidate solution broadly mirrors the paper’s structure and most conclusions, but contains a critical gap and a wrong identity in case (iii). Specifically: (1) it attempts to force x̄→0 from a Jensen-type lower bound on EC without showing that every zero-dissipation ω-limit configuration must satisfy x̄=0—whereas the paper correctly uses Lemma 3.8 to prove exactly that when σr ≥ (2N/(N−1))σa or σa=0<σr ; and (2) it incorrectly claims that summing the pairwise forces for σa=0 yields Σi (1/N)Σj≠i σij(…)=−((σr/2)(N−1))x̄ (no such simplification holds due to the variable 1/∥xi−xj∥2 weights). The remaining parts (constraint invariance, well-posedness with collision avoidance for σr>0, dissipation identity, D(t)→0 via bounded-derivative/Barbalat-type reasoning, characterization of zero-dissipation motions as rigid rotations) align with the paper’s results and intent, but the flaw in case (iii) means the candidate proof is not fully correct or complete .

Referee report (LaTeX)

\textbf{Recommendation:} reject

\textbf{Journal Tier:} specialist/solid

\textbf{Justification:}

The paper’s argument is rigorous and complete, establishing global well-posedness, velocity alignment, and a sharp classification using LaSalle’s invariance principle and a careful geometric analysis of the largest invariant set. The candidate solution captures much of this structure but fails to justify the uniform-deployment regime from its Jensen bound and includes a false identity for the σa=0 case. Given these substantive issues, I cannot accept the candidate solution as correct.