A finitary Kronecker's lemma and large deviations in the strong law of large numbers on Banach spaces

Research output: Contribution to journalArticlepeer-review

Abstract

We explore the computational content of Kronecker's lemma via the proof-theoretic perspective of proof mining and utilise the resulting finitary variant of this fundamental result to provide new rates for the Strong Law of Large Numbers for random variables taking values in type p Banach spaces, which in particular are very uniform in the sense that they do not depend on the distribution of the random variables. Furthermore, we provide computability-theoretic arguments to demonstrate the ineffectiveness of Kronecker's lemma and investigate the result from the perspective of Reverse Mathematics. In addition, we demonstrate how this ineffectiveness from Kronecker's lemma trickles down to the Strong Law of Large Numbers by providing a construction that shows that computable rates of convergence are not always possible. Lastly, we demonstrate how Kronecker's lemma falls under a class of deterministic formulas whose solution to their Dialectica interpretation satisfies a continuity property and how, for such formulas, one obtains an upgrade principle that allows one to lift computational interpretations of deterministic results to quantitative results for their probabilistic analogue. This result generalises the previous work of the author and Pischke.

Original languageEnglish
Article number103569
JournalAnnals of Pure and Applied Logic
Volume176
Issue number6
Early online date4 Mar 2025
DOIs
Publication statusPublished - 30 Jun 2025

Data Availability Statement

No data was used for the research described in the article.

Keywords

  • Kronecker's lemma
  • Large deviations
  • Laws of large
  • Probability theory
  • Proof mining

ASJC Scopus subject areas

  • Logic

Fingerprint

Dive into the research topics of 'A finitary Kronecker's lemma and large deviations in the strong law of large numbers on Banach spaces'. Together they form a unique fingerprint.

Cite this