Search Results - subject:"Distribution function"

Evaluation of the Adequacy of Statistical Distribution Functions for Deriving Unit Hydrograph

Rai, R.; Sarkar, S.; Singh, V. - In: Water Resources Management 23 (2009) 5, pp. 899-929

the UH satisfies all the properties of a probability distribution function (PDF), it seems logical that PDFs can be … employed for deriving the UH. In practice, the gamma distribution function has been commonly employed to derive the UH. In this … tested on the 13 watersheds of different characteristics and it was observed that except for the EXP distribution function …

Persistent link: https://www.econbiz.de/10010997886

General relativistic Boltzmann equation, I: Covariant treatment

Debbasch, F.; van Leeuwen, W.A. - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 7, pp. 1079-1104

General Relativistic Boltzmann equation. In this first article, the general relativistic one-particle distribution function in …

Persistent link: https://www.econbiz.de/10010591625

Granular gas of viscoelastic particles in a homogeneous cooling state

Bodrova, A.S.; Brilliantov, N.V. - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 17, pp. 3315-3324

coefficient a3 of the Sonine polynomials expansion of the velocity distribution function is taken into account. We observe a …-energy tail of the velocity distribution function. In particular, we study the time dependence of the tail amplitude and of the …

Persistent link: https://www.econbiz.de/10011064285

General relativistic Boltzmann equation, II: Manifestly covariant treatment

Debbasch, F.; van Leeuwen, W.A. - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 9, pp. 1818-1834

In a preceding article we presented a general relativistic treatment of the derivation of the Boltzmann equation. The four-momenta occurring in this formalism were all on-shell four-momenta, verifying the mass-shell restriction p2=m2c2. Due to this restriction, the resulting Boltzmann equation,...

Persistent link: https://www.econbiz.de/10010872301

M-quantile models with application to poverty mapping

Tzavidis, Nikos; Salvati, Nicola; Pratesi, Monica; … - In: Statistical Methods and Applications 17 (2008) 3, pp. 393-411

Persistent link: https://www.econbiz.de/10005178623

Successive Sampling to Estimate Quantiles with P-Auxiliary Variables

Rueda, María; Muñoz, Juan; Arcos, Antonio - In: Quality & Quantity: International Journal of Methodology 42 (2008) 4, pp. 427-443

Persistent link: https://www.econbiz.de/10009396703

A genetic algorithm for the 1D electron gas

Stoico, César O.; Renzi, Danilo G.; Vericat, Fernando - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 1, pp. 159-166

We show how to apply a genetic algorithm to describe the homogeneous electron gas. For simplicity we consider just the 1D case. The pair correlation function so obtained is compared with those found by using variational Monte Carlo and quantum hypernetted chain calculations and reported for the...

Persistent link: https://www.econbiz.de/10010591070

A general definition of the Leimkuhler curve

Sarabia, José María - In: Journal of Informetrics 2 (2008) 2, pp. 156-163

distribution function. The definition applies to discrete, continuous and mixed random variables. Several examples are given to …

Persistent link: https://www.econbiz.de/10011039406

Asymptotic Approximations in the Near-Integrated Model with a Non-Zero Initial Condition

PERRON, Pierre; VODOUNOU, Cosme - Département de Sciences Économiques, Université de … - 1998

This paper considers various asymptotic approximations in the near-integrated firstorder autoregressive model with a non-zero initial condition. We first extend the work of Knight and Satchell (1993), who considered the random walk case with a zero initial condition, to derive the expansion of...

Persistent link: https://www.econbiz.de/10005545707

The FCLT with Dependent Errors: an Helicopter Tour of the Quality of the Approximation

PERRON, Pierre; MALLET, Sylvie - Département de Sciences Économiques, Université de … - 1998

This note investigates the adequacy of the finite-sample approximation provided by the Functional Central Limit Theorem (FCLT) when the errors are allowed to be dependent. We compare the distribution of the scaled partial sums of some data with the distribution of the Wiener process to which it...

Persistent link: https://www.econbiz.de/10005729728