Author

Serhii W. Zabolotnii

Cherkasy State Business College

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Preprint Oct 2026

Rank-one variance inflation in polynomial estimation of signal parameters with a sign-preserving fractional-power basis

The polynomial maximization method estimates signal parameters in non-Gaussian noise from a finite description of the noise by its moments and cumulants, without a density. Known accuracy results assume that these noise characteristics are known, or use a design in which estimating them jointly costs no accuracy. In pr...

Serhii W. Zabolotnii · 0 citations

#artificial intelligence Review Sep 2026

Trust Is Not a Score: Runtime Assurance Contracts for High-Risk AI Agents

Benchmarks, audits, and agent protocols describe performance, permissions, and repair, but not how observed evidence should change an agent's authority during a consequential task. We call this the assurance-transition gap. We propose a Runtime Assurance Contract (RAC), a policy-level formal schema binding autonomy bou...

Serhii W. Zabolotnii · 0 citations

Preprint Jul 2026

Exact Computation of Non-Gaussian Mismatch Penalties in Wiener-Hermite Cross-Correlation Identification

The computation is a weighted-$L^2$ projection whose core normal-system correspondence is machine-checked in Lean 4.5, and gives the exact finite-order excess $L^2(P)$ risk of this mismatch.

Serhii W. Zabolotnii · 0 citations