From Ball's cube slicing inequality to Khinchin-type inequalities for negative moments

G Chasapis, H König, T Tkocz - Journal of Functional Analysis, 2021 - Elsevier
From Ball's cube slicing inequality to Khinchin-type inequalities for negative moments -
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Norms on complex matrices induced by random vectors

Á Chávez, SR Garcia, J Hurley - Canadian Mathematical Bulletin, 2023 - cambridge.org
We introduce a family of norms on the complex matrices. These norms arise from a
probabilistic framework, and their construction and validation involve probability theory …

A discrete complement of Lyapunov's inequality and its information theoretic consequences

J Melbourne, G Palafox-Castillo - The Annals of Applied …, 2023 - projecteuclid.org
We establish a reversal of Lyapunov's inequality for monotone log-concave sequences,
settling a conjecture of Havrilla–Tkocz and Melbourne–Tkocz. A strengthened version of the …

Reversal of Rényi entropy inequalities under log-concavity

J Melbourne, T Tkocz - IEEE Transactions on Information …, 2020 - ieeexplore.ieee.org
We establish a discrete analog of the Rényi entropy comparison due to Bobkov and
Madiman. For log-concave variables on the integers, the min entropy is within log e of the …

Nonparametric confidence regions via the analytic wild bootstrap

KL Burak, AB Kashlak - Canadian Journal of Statistics, 2023 - Wiley Online Library
The wild bootstrap is a nonparametric tool that can be used to estimate a sampling
distribution in the presence of heteroscedastic errors. In particular, the wild bootstrap …

Hunter's positivity theorem and random vector norms

L Bouthat, Á Chávez, SR Garcia - arXiv preprint arXiv:2403.10314, 2024 - arxiv.org
A theorem of Hunter ensures that the complete homogeneous symmetric polynomials of
even degree are positive definite functions. A probabilistic interpretation of Hunter's theorem …

Distributional stability of the Szarek and Ball inequalities

A Eskenazis, P Nayar, T Tkocz - Mathematische Annalen, 2024 - Springer
We prove an extension of Szarek's optimal Khinchin inequality (1976) for distributions close
to the Rademacher one, when all the weights are uniformly bounded by a 1/2 fraction of their …

Computation-free nonparametric testing for local spatial association with application to the US and Canadian electorate

AB Kashlak, W Yuan - Spatial Statistics, 2022 - Elsevier
Measures of local and global spatial association are key tools for exploratory spatial data
analysis. Many such measures exist including Moran's I, Geary's C, and the Getis–Ord G and …

Khinchin-type inequalities via Hadamard's factorisation

A Havrilla, P Nayar, T Tkocz - … Mathematics Research Notices, 2023 - academic.oup.com
We prove Khinchin-type inequalities with sharp constants for type L random variables and
all even moments. Our main tool is Hadamard's factorisation theorem from complex analysis …

Haagerup's phase transition at polydisc slicing

G Chasapis, S Singh, T Tkocz - arXiv preprint arXiv:2206.01026, 2022 - arxiv.org
We establish a sharp comparison inequality between the negative moments and the second
moment of the magnitude of sums of independent random vectors uniform on three …