Results 101 to 110 of about 57,915 (295)

The discounted local limit theorems for large deviations

open access: yesLietuvos Matematikos Rinkinys, 2008
Theorems of large deviations, both in the Cramer zone and the Linnik power zones, for the normal approximation of the distribution density function of normalized sum Sv = \sum∞ k=0 vkXk, 0 < v < 1, of i.i.d.
Leonas Saulis, Dovilė Deltuvienė
doaj   +1 more source

Cascade Boltzmann - Langevin approach to higher-order current correlations in diffusive metal contacts

open access: yes, 2002
The Boltzmann - Langevin approach is extended to calculations of third and fourth cumulants of current in diffusive-metal contacts. These cumulants result from indirect correlations between current fluctuations, which may be considered as "noise of noise"
A. Kamenev   +17 more
core   +1 more source

Adaptive Estimation for Weakly Dependent Functional Times Series

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT We propose adaptive mean and autocovariance function estimators for stationary functional time series under 𝕃p−m‐approximability assumptions. These estimators are designed to adapt to the regularity of the curves and to accommodate both sparse and dense data designs.
Hassan Maissoro   +2 more
wiley   +1 more source

A local existence theorem of the solution of the Cauchy problem for BBGKY chain of equations represented in cumulant expansions in the space E_{ξ} [PDF]

open access: yesOpuscula Mathematica, 2004
It is proved convergence of solution in cumulant expansions of the initial value problem for BBGKY chain of equations of non-symmetrical one-dimensional system of particles which interact via a short-range potential in the space \(E_{\xi}\) of the ...
Myhaylo O. Stashenko, Halyna M. Hubal
doaj  

Correlations between Background Radiation Inside a Multilayer Interleaving Structure, Geomagnetic Activity, and Cosmic Radiation: A Fourth-Order Cumulant-Based Correlation Analysis

open access: yesMathematics, 2020
Time-series of background radiation (measured inside a multilayer structure), geomagnetic activity, and cosmic-ray activity has been analyzed using linear correlation analysis and a new correlation measure based on the one-dimensional component of the ...
Miguel E. Iglesias-Martínez   +9 more
doaj   +1 more source

High-order current correlation functions in Kondo systems

open access: yes, 2004
We examine the statistics of current fluctuations in a junction with a quantum dot described by Kondo Hamiltonian. With the help of modified Keldish technique we calculate the third current cumulant.
A. C. Hewson, A. Golub
core   +1 more source

Fiscal policy and economic activity: new causal evidence

open access: yesThe Scandinavian Journal of Economics, EarlyView.
Abstract Utilizing a quasi‐natural experiment design, we identify an exogenous cut in local taxes accompanied by an equivalent reduction in local government spending, and we estimate the impact of these exogenous changes on income. We exploit a unique regional dataset that combines local income data with local voting outcomes on current expense tax ...
David M. Brasington, Marios Zachariadis
wiley   +1 more source

Benchmarking the Cumulant Expansion Method Using Dicke Superradiance

open access: yesPhotonics
Collective superradiant decay of a tightly packed inverted quantum emitter ensemble is among the most intensely studied phenomena in quantum optics. Since the seminal work of Dicke more than half a century ago, a plethora of theoretical calculations in ...
Martin Fasser   +3 more
doaj   +1 more source

Behavior and finite-size effects of the sixth order cumulant in the three-dimensional Ising universality class

open access: yes, 2016
The high-order cumulants of conserved charges are suggested to be sensitive observables to search for the critical point of Quantum Chromodynamics (QCD). This has been calculated to the sixth order in experiments. Corresponding theoretical studies on the
Chen, Li-Zhu, Pan, Xue, Wu, Yuan-Fang
core   +1 more source

Dual‐Functional Polyphosphoesters for Gene Delivery: Synergistic Effects of Guanidinium and Hydrophobic Side Chains in Degradable Polymers

open access: yesAdvanced Healthcare Materials, Volume 15, Issue 9, 6 March 2026.
This study presents guanidinium‐ and indole‐functionalized polyphosphoesters as degradable, non‐viral gene delivery vectors. Through precise tuning of charge density and hydrophobicity, these polymers form stable polyplexes with low toxicity. Remarkably, minor structural changes yield up to 200‐fold differences in transfection efficiency, highlighting ...
Markus Kötzsche   +8 more
wiley   +1 more source

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