Results 91 to 100 of about 30,274 (242)

Translationally invariant cumulants in energy cascade models of turbulence

open access: yes, 2001
In the context of random multiplicative energy cascade processes, we derive analytical expressions for translationally invariant one- and two-point cumulants in logarithmic field amplitudes. Such cumulants make it possible to distinguish between hitherto
Arneodo   +23 more
core   +1 more source

On moments of the derivative of CUE characteristic polynomials and the Riemann zeta function

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract We study the derivative of the characteristic polynomial of N×N$N \times N$ Haar‐distributed unitary matrices. We obtain new explicit formulae for complex‐valued moments when the spectral variable is inside the unit disc, in the limit N→∞$N \rightarrow \infty$.
Nicholas Simm, Fei Wei
wiley   +1 more source

Probing the QCD phase diagram with fluctuations

open access: yes, 2014
The relevance of higher order cumulants of conserved charges for the analysis of freeze-out and critical conditions in heavy ion collisions at LHC and RHIC is discussed.
Friman, Bengt
core   +1 more source

Non-uniform Estimates in the Approximation by the Irwin Law

open access: yesLithuanian Journal of Statistics, 2016
We consider an approximation of a cumulative distribution function F(x) by the cumulative distributionfunction G(x) of the Irwin law. In this case, a function F(x) can be cumulative distribution functions of sums (products) ofindependent (dependent ...
Kazimieras Padvelskis, Ruslan Prigodin
doaj   +1 more source

On the computation of classical, boolean and free cumulants

open access: yes, 2008
This paper introduces a simple and computationally efficient algorithm for conversion formulae between moments and cumulants. The algorithm provides just one formula for classical, boolean and free cumulants.
Di Nardo, E., Oliva, I.
core   +2 more sources

Use of cumulants to quantify uncertainties in the HBT measurements of the homogeneity regions

open access: yes, 2008
Let us denote p(x|K) the space density of the points where identical particles of some kind, e.g. pi+ mesons, with momentum K are produced. When using the HBT method to determine p(x|K) one encounters ambiguities.
G. I. Kopylov   +4 more
core   +1 more source

Determining source cumulants in femtoscopy with Gram-Charlier and Edgeworth series

open access: yes, 2011
Lowest-order cumulants provide important information on the shape of the emission source in femtoscopy. For the simple case of noninteracting identical particles, we show how the fourth-order source cumulant can be determined from measured cumulants in ...
de Kock, Michiel B   +2 more
core   +1 more source

Inverse counting statistics for stochastic and open quantum systems: the characteristic polynomial approach

open access: yesNew Journal of Physics, 2014
We consider stochastic and open quantum systems with a finite number of states, where a stochastic transition between two specific states is monitored by a detector.
M Bruderer   +5 more
doaj   +1 more source

Numerical Computing and Graphics for the Power Method Transformation Using Mathematica

open access: yesJournal of Statistical Software, 2007
This paper provides the requisite information and description of software that perform numerical computations and graphics for the power method polynomial transformation.
Todd C. Headrick   +2 more
doaj  

On learning higher-order cumulants in diffusion models

open access: yesMachine Learning: Science and Technology
To analyse how diffusion models learn correlations beyond Gaussian ones, we study the behaviour of higher-order cumulants, or connected n -point functions, under both the forward and backward process.
Gert Aarts   +3 more
doaj   +1 more source

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