Results 91 to 100 of about 57,915 (295)

Polydispersity analysis of Taylor dispersion data: the cumulant method. [PDF]

open access: yesAnalytical Chemistry, 2014
Taylor dispersion analysis is an increasingly popular characterization method that measures the diffusion coefficient, and hence the hydrodynamic radius, of (bio)polymers, nanoparticles, or even small molecules.
L. Cipelletti   +3 more
semanticscholar   +1 more source

Counting statistics of the Dicke superradiance phase transition

open access: yes, 2013
We consider a driven single mode Dicke-Hamiltonian coupled to a dissipative zero-temperature bath. We derive the cumulant generating function for emitted photons of this quantum-critical system by using a $P$-representation of the master equation in the ...
Brandes, Tobias   +2 more
core   +1 more source

Specification Tests for Jump‐Diffusion Models Based on the Characteristic Function

open access: yesInternational Statistical Review, EarlyView.
Summary Goodness‐of‐fit tests are suggested for several popular jump‐diffusion processes. The suggested test statistics utilise the marginal characteristic function of the model and its L2‐type discrepancy from an empirical counterpart. Model parameters are estimated either by minimising the aforementioned L2‐type discrepancy or by maximum likelihood ...
Gerrit Lodewicus Grobler   +3 more
wiley   +1 more source

The discount version of large deviations for a randomly indexed sum of random variables

open access: yesLietuvos Matematikos Rinkinys, 2011
In this paper, we consider a compound random variable Z = \sum^N_{j=1} vjXj , where 0 < v < 1, Z = 0, if N = 0. It is assumed that independent identically distributed random variables X1,X2, . . .
Aurelija Kasparavičiūtė   +1 more
doaj   +1 more source

Cumulative Subtraction Games [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2019
We study a variation of Nim-type subtraction games, called Cumulative Subtraction (CS). Two players alternate in removing pebbles out of a joint pile, and their actions add or remove points to a common score. We prove that the zero-sum outcome in optimal play of a CS with a finite number of possible actions is eventually periodic, with period $2s ...
Cohensius, Gal   +3 more
openaire   +3 more sources

On Exponential‐Family INGARCH Models

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT A range of integer‐valued generalised autoregressive conditional heteroscedastic (INGARCH) models have been proposed in the literature, including those based on conditional Poisson, negative binomial and Conway‐Maxwell‐Poisson distributions. This note considers a larger class of exponential‐family INGARCH models, showing that maximum empirical
Alan Huang   +3 more
wiley   +1 more source

Theorems on large deviations for the sum of random number of summands

open access: yesLietuvos Matematikos Rinkinys, 2010
In this paper, we present the rate of convergence of normal approximation and the theorem on large deviations for a compound process Zt = \sumNt i=1 t aiXi, where Z0 = 0 and ai > 0, of weighted independent identically distributed random variables Xi, i =
Aurelija Kasparavičiūtė   +1 more
doaj   +1 more source

Combined cumulant and Gaussian mixture approximation for correlated probabilistic load flow studies: a new approach

open access: yes, 2016
In this paper, a probabilistic load flow analysis technique that combines the cumulant method and Gaussian mixture approximation method is proposed.
B. Prusty, D. Jena
semanticscholar   +1 more source

Functional Sieve Bootstrap for the Partial Sum Process With an Application to Change‐Point Detection

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT This article applies the functional sieve bootstrap (FSB) to estimate the distribution of the partial sum process for time series stemming from a weakly stationary functional process. Consistency of the FSB procedure under weak assumptions on the underlying functional process is established.
Efstathios Paparoditis   +2 more
wiley   +1 more source

On Regularized Solution for BBGKY Hierarchy of One-Dimensional Infinite System

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2006
We construct a regularized cumulant (semi-invariant) representation of a solution of the initial value problem for the BBGKY hierarchy for a one-dimensional infinite system of hard spheres interacting via a short-range potential.
Tatiana V. Ryabukha
doaj  

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