Results 81 to 90 of about 15,674 (187)
Journal of Time Series Analysis, Volume 47, Issue 3, Page 539-556, May 2026.ABSTRACT In this paper, we propose a new test for the detection of a change in a non‐linear (auto‐)regressive time series as well as a corresponding estimator for the unknown time point of the change. To this end, we consider an at‐most‐one‐change model and approximate the unknown (auto‐)regression function by a neural network with one hidden layer. It
Claudia Kirch, Stefanie Schwaar
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ChemPhysChem, Volume 27, Issue 8, 28 April 2026.For directly comparing experimental results on gas‐phase ion reactions with the predictions from quantum chemical calculations, the latter must first be converted into rate constants. This review addresses the question of whether current methods of statistical rate theory can accomplish this task reliably. Statistical rate theory has long been used for
Thomas Auth, Konrad Koszinowski
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Ergodic and Mixing Properties of the Boussinesq Equations with a Degenerate Random Forcing [PDF]
, 2013 We establish the existence, uniqueness and attraction properties of an ergodic invariant measure for the Boussinesq Equations in the presence of a degenerate stochastic forcing acting only in the temperature equation and only at the largest spatial ...
Földes, Juraj +3 more
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, 2015 We analyse the $\ell^2(\pi)$-convergence rate of irreducible and aperiodic Markov chains with $N$-band transition probability matrix $P$ and with invariant distribution $\pi$.
Hervé, Loïc, Ledoux, James
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Ergodic recurrence and bounded gaps between primes
Transactions of the American Mathematical SocietyLet ( X , B X , μ , T ) (\mathcal {X},\mathscr {B}_\mathcal {X},\mu ,T) be a measure-preserving probability system with T T is invertible. Suppose that A ∈
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On‐Demand Cargo Release via Low‐Voltage Actuated Flexible Microchamber Arrays
Advanced Materials Technologies, Volume 11, Issue 8, 17 April 2026.On‐demand triggering of cargoes’ release from free standing array of biocompatible microchambers may be actuated by electrical stimuli at voltages as low as 1 V, even making them suitable for implantation in living beings for drug delivery purposes.
Stefania Boi +12 more
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Spectral bounds for ergodic Jacobi operators
We consider ergodic Jacobi operators and obtain estimates on the Lebesgue measure and the distance between maximum and minimum points of the spectrum in terms of the Lyapunov exponent. Our proofs are based on results from logarithmic potential theory and their connections with spectral theory of Jacobi operators.
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Environmetrics, Volume 37, Issue 3, April 2026.ABSTRACT We propose a new time series model for continuous data supported on the open unit interval (0,1)$$ \left(0,1\right) $$, motivated by applications in environmental and energy systems. The Matsuoka autoregressive moving average (MARMA) model combines the Matsuoka distribution‐a uniparametric member of the canonical exponential family‐as the ...
Guilherme Pumi +3 more
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A Vulnerability Lens for Intuitive‐Logic Scenarios
FUTURES &FORESIGHT SCIENCE, Volume 8, Issue 1, April 2026.ABSTRACT Exploration of possibilities by means of intuitive logic is hampered by a large number of scenarios, which easily exceed the limits imposed by human bounded rationality. While many practitioners constrain their scenarios within a 2 × 2 $2\times 2$ matrix by design, more structured approaches point to rationales such as eliminating ...
Guido Fioretti
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On the Ergodic Rate Lower Bounds With Applications to Massive MIMO [PDF]
IEEE Transactions on Wireless Communications, 2018 A well-known lower bound widely used in the massive MIMO literature hinges on channel hardening, i.e., the phenomenon for which, thanks to the large number of antennas, the effective channel coefficients resulting from beamforming tend to deterministic quantities.
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