Results 111 to 120 of about 52,018 (229)

Pointwise ergodic theorems [PDF]

Transactions of the American Mathematical Society, 1966
Introduction. The purpose of this paper is to extend various known results in operator ergodic theory to give a direct approach to pointwise ergodic theorems. The main step in this approach is a maximal ergodic theorem (Theorem 1), which is a generalization of the result given in [1]. A corollary (Theorem 2) of this theorem is Chacon's ergodic theorem [
openaire   +1 more source

From the Modeling of Experiments to the Ab Initio Prediction of Rate Constants: Statistical Rate Theory for a Quantitative Understanding of Gas‐Phase Ion Chemistry

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
wiley   +1 more source

Evolutionary computation with simulated annealing: conditions for optimal equilibrium distribution

Journal of Computer Science and Technology, 2005
In this paper a thermodynamic approach is presented to the problem of convergence of evolutionary algorithms. The case of the Simulated Annealing algorithm for optimisation is considered as a simple evolution strategy with a control parameter allowing ...
Enrique C. Segura
doaj  

Ergodicity breaking on the neuronal surface emerges from random switching between diffusive states

Scientific Reports, 2017
Stochastic motion on the surface of living cells is critical to promote molecular encounters that are necessary for multiple cellular processes. Often the complexity of the cell membranes leads to anomalous diffusion, which under certain conditions it is
Aleksander Weron, Krzysztof Burnecki, Elizabeth J. Akin, Laura Solé, Michał Balcerek, Michael M. Tamkun, Diego Krapf   +6 more
doaj   +1 more source

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, Valentina Ricci, Maddalena Botti, Simone L. Marasso, Valentina Sinisi, Davide Vurro, Rishit Mohan Ahuja, Alberto Ballesio, Matteo Cocuzza, Saksham Sharma, Giuseppe Tarabella, Salvatore Iannotta, Pasquale D'Angelo   +12 more
wiley   +1 more source

A Matsuoka‐Based GARMA Model for Environmental and Energy Systems: Theory, Estimation, and Applications

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, Danilo Hiroshi Matsuoka, Taiane Schaedler Prass, Bruna Gregory Palm   +3 more
wiley   +1 more source

Matrix-graphic simulation of social network: ergodic properties

Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï
We propose mathematical tools for social network simulation to obtain sufficient conditions for network ergodicity, defined as the existence of a steady state as time approaches infinity.
Igor Spectorsky, Vitalii Statkevych, Oleksandr Stus   +2 more
doaj   +1 more source

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
wiley   +1 more source

Multi‐Scale Structural Insights Into Amphiphilic Model PEG–PCL Co‐Networks From LS and SANS

Macromolecular Chemistry and Physics, Volume 227, Issue 7, 14 April 2026.
We present a multiscale structural study of amphiphilic PEG–PCL co‐networks combining light scattering in THF and small‐angle neutron scattering in D2O. This dual‐solvent approach reveals how solvent quality, polymer volume fraction, and PEG/PCL interactions govern static and dynamic correlation lengths, network homogeneity, and nanoscale domain ...
Sebastian Seitel, Nora Fribiczer, Brian Carrick, Stephanie Ihmann, Frank Böhme, Bradley D. Olsen, Sebastian Seiffert   +6 more
wiley   +1 more source

Development of a Constructive Method for Verification of Ergodicity and Calculation of the Stationary Distribution of Quasi-Birth-And-Death Processes with Spatially Inhomogeneous Transitions

Mathematics
The problem of verifying ergodicity and calculating the stationary distribution for continuous-time multidimensional Markov chains with a block tridiagonal generator (Quasi-Birth-and-Death (QBD) processes) is investigated.
Sergei A. Dudin, Alexander N. Dudin, Olga S. Dudina   +2 more
doaj   +1 more source