Results 21 to 30 of about 2,188,866 (304)

Existence theories and exact solutions of nonlinear PDEs dominated by singularities and time noise

open access: yesNonlinear Analysis, 2023
The current research deals with the exact solutions of the nonlinear partial differential equations having two important difficulties, that is, the coefficient singularities and the stochastic function (white noise).
Muhammad Ozair Ahmed   +5 more
doaj   +1 more source

ON THE BIMODALITY OF THE EXACT DISTRIBUTION OF THE TSLS ESTIMATOR [PDF]

open access: yesEconometric Theory, 2006
Nelson and Startz (Econometrica, 58, 1990), Maddala and Jong (Econometrica, 60, 1992) and Wolgrom (Econometrica, 69, 2001) have shown that the density of the two-stage least squares estimator may be bimodal in a just identified structural equation. This paper further investigates the conditions under which bimodality may arise in a just/over-identified
openaire   +4 more sources

Exact estimation for Markov chain equilibrium expectations [PDF]

open access: yesJournal of Applied Probability, 2014
We introduce a new class of Monte Carlo methods, which we call exact estimation algorithms. Such algorithms provide unbiased estimators for equilibrium expectations associated with real-valued functionals defined on a Markov chain. We provide easily implemented algorithms for the class of positive Harris recurrent Markov chains, and for chains that are
Glynn, Peter W., Rhee, Chang-Han
openaire   +3 more sources

Inferences for Generalized Pareto Distribution Based on Progressive First-Failure Censoring Scheme

open access: yesComplexity, 2021
In this article, we consider estimation of the parameters of a generalized Pareto distribution and some lifetime indices such as those relating to reliability and hazard rate functions when the failure data are progressive first-failure censored.
Rashad M. El-Sagheer   +2 more
doaj   +1 more source

Order estimates for the exact Lugannani–Rice expansion [PDF]

open access: yesJapan Journal of Industrial and Applied Mathematics, 2014
The Lugannani-Rice formula is a saddlepoint approximation method for estimating the tail probability distribution function, which was originally studied for the sum of independent identically distributed random variables. Because of its tractability, the formula is now widely used in practical financial engineering as an approximation formula for the ...
Takashi Kato   +2 more
openaire   +3 more sources

Exact goodness-of-fit tests for censored dats [PDF]

open access: yes, 2009
The statistic introduced in Fortiana and Grané (2003) is modified so that it can be used to test the goodness-of-fit of a censored sample, when the distribution function is fully specified.
Grané, Aurea, Grané Chávez, Aurea
core   +1 more source

Estimates of approximative characteristics of the classes $B^{\Omega}_{p,\theta}$ of periodic functions of several variables with given majorant of mixed moduli of continuity in the space $L_{q}$

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2019
In this paper, we continue the study of approximative characteristics of the classes $B^{\Omega}_{p,\theta}$ of periodic functions of several variables whose majorant of the mixed moduli of continuity contains both exponential and logarithmic multipliers.
O.V. Fedunyk-Yaremchuk, S.B. Hembars'ka
doaj   +1 more source

Exact estimation of multiple directed acyclic graphs [PDF]

open access: yesStatistics and Computing, 2015
No description ...
Chris J. Oates   +3 more
openaire   +6 more sources

exact-real

open access: yes, 2021
exact-real is a C++/Python library which provides exact lazy computations in the Real Numbers. In particular it implements arithmetic and comparisons of (random) transcendental numbers.Please visit our home page for more ...
Rüth, Julian
core   +1 more source

Exact BER Analysis of OFDM Systems Communicating over Frequency-Selective Fading Channels Subjected to Carrier Frequency Offset

open access: yes, 2007
Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless standards. However, the performance of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase Estimation Error (PER).
Liu, X., Hanzo, L.
core   +2 more sources

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