arXiv:2606.31787v1

Pressure for the space of average pseudo-orbits with block sub-additive potentials

Fangzhou Cai, Jie Li

math.DS37D3537A3537C50

Abstract

In this paper, we introduce the concept of block sub-additive potential. The topological and measure-theoretic pressures are then defined for the space of average pseudo-orbits relative to any block sub-additive potential and any open cover of a given compact metric space. A local variational principle connecting these pressures is established, and it is further proven that they are equivalent to the corresponding topological and measure-theoretic pressure (in the ergodic case), respectively, defined for the induced sub-additive potential and the specified open cover. Additionally, the global versions of these concepts are also investigated, and a result that bridges the global and local perspectives is presented.

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Audited against arXiv v1

Not a correctness certificate. A “Correct” result may include yellow typos or minor formal corrections that do not affect substantive soundness. It means this audit found no unresolved substantive error under the stated criteria; it does not replace expert scrutiny or formal verification.

Current report

Detailed mathematical audit

Generated August 18, 2026
01Statements2 reported findingsCorrect

The pressure formulae for spaces of average pseudo-orbits with block subadditive potentials, including the local measure-theoretic and variational characterizations, are correct.

Theorems 1.1–1.4Correct

Average pseudo-orbit pressure satisfies the stated variational principles

Pages 3–6 and Sections 3–6 · arXiv:2606.31787v1

Block subadditivity supplies uniform control when long average pseudo-orbits are cut into orbit-like blocks. Separated-set covers give the upper pressure bound, while empirical measures of nearly maximizing pseudo-orbits converge to invariant measures and give the reverse inequality. The natural extension handles noninvertible systems without changing the local pressure, and the topological concatenation construction realizes the maximizing entropy-plus-potential value.

Full paper, version 1
Theorems 1.2–1.4Correct

Local, measure-theoretic, and variational pressure formulas use consistent pseudo-orbit notions

Pages 5–7 and Sections 4–6 · arXiv:2606.31787v1

The average-shadowing sets are defined with the same block-subadditive potential throughout. The local formula is applied on generic empirical measures, the natural-extension step handles noninvertibility, and the supremum over invariant measures reproduces the global pressure stated in Theorem 1.1.

02Proofs2 reported findingsCorrect

The covering, empirical-measure, natural-extension, and concatenation arguments are correct and complete.

Sections 3–6Correct and complete

The block errors vanish under the announced averaging

Pages 10–31 · Sections 3–6 · arXiv:2606.31787v1

Each decomposition leaves only a uniformly bounded number of incomplete blocks, so division by orbit length removes the boundary error. Weak-star limits are invariant because the average pseudo-orbit defect tends to zero. The local entropy estimates use finite partitions with null boundaries, and the lifting argument preserves both entropy and the block-subadditive integral.

Sections 4–6Correct and complete

Empirical-measure localization and pseudo-orbit concatenation close the reverse bounds

Pages 18–38 · arXiv:2606.31787v1

Cover estimates give the upper bound on each empirical-measure neighborhood, while long typical orbit blocks are concatenated with an error density tending to zero for the converse. Block subadditivity controls the potential across junctions, and passage through the natural extension preserves both entropy and the relevant averages.

03Novelty0 reported findingsNo non-novelty findings

No non-novelty findings.

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Paper
arXiv:2606.31787v1
Authors listed
Fangzhou Cai, Jie Li
Audit date
August 18, 2026
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