Results 31 to 40 of about 181,747 (177)

ON SINGULAR STATIONARITY II (TIGHT STATIONARITY AND EXTENDERS-BASED METHODS) [PDF]

open access: yesThe Journal of Symbolic Logic, 2019
AbstractWe study the notion of tightly stationary sets which was introduced by Foreman and Magidor in [8]. We obtain two consistency results showing that certain sequences of regular cardinals${\langle {\kappa _n}\rangle _{n < \omega }}$can have the property that in some generic extension, every ground-model sequence of fixed-cofinality stationary ...
openaire   +2 more sources

Extreme 1-day rainfall distributions: Analysing change in the Western Cape

open access: yesSouth African Journal of Science, 2017
Severe floods in the Western Cape Province of South Africa have caused significant damage to property and infrastructure over the past decade (2003–2014).
Jan H. de Waal   +2 more
doaj   +1 more source

On a Class of Z+-Valued Autoregressive Moving Average (ARMA) Processes

open access: yesRevstat Statistical Journal, 2008
A convolution semigroup of probability generating functions and its related operator ⊙F are used to construct a class of stationary Z+-valued autoregressive moving average (ARMA) processes.
Emad-Eldin A. A. Aly , Nadjib Bouzar
doaj   +1 more source

Fault Detection in Industrial Equipment through Analysis of Time Series Stationarity

open access: yesAlgorithms
Predictive maintenance has gained importance due to industrialization. Harnessing advanced technologies like sensors and data analytics enables proactive interventions, preventing unplanned downtime, reducing costs, and enhancing workplace safety.
Dinis Falcão   +4 more
doaj   +1 more source

Evaluation of the Stationarity Assumption for Meteorological Drought Risk Estimation at the Multidecadal Scale in Contiguous United States

open access: yesWater Resources Research, 2019
In this study, we analyze the nonstationarity in meteorological droughts at the multidecadal scale in different parts of the contiguous United States during 1901–2017.
Tushar Apurv, Ximing Cai
doaj   +1 more source

On a Class of Time Series Model with Double Lindley Distribution as Marginals

open access: yesStatistica, 2022
An autoregressive process of order one with double Lindley distribution as marginal is introduced. A mixture distribution is obtained for the innovation process. Analytical properties of the process are discussed.
Kunnathully Unnikrishnan Nitha   +1 more
doaj   +1 more source

Stationarity and quasi-stationarity for birth-death processes [PDF]

open access: yesSCIENTIA SINICA Mathematica, 2019
Professor Zikun Wang has made pioneering research on the construction theory of birth-death processes, which now has many applications.We review the quasi-stationary distribution for birth-death processes with four types of infinity boundary. In the cases of exit/regular boundaries,we extend the quasi-stationary distributions to the minimal processes ...
openaire   +1 more source

Evaluating Methods for Detrending Time Series Using Ordinal Patterns, with an Application to Air Transport Delays

open access: yesEntropy
Functional networks have become a standard tool for the analysis of complex systems, allowing the unveiling of their internal connectivity structure while only requiring the observation of the system’s constituent dynamics.
Felipe Olivares   +3 more
doaj   +1 more source

Stationarity in moment closure and quasi-stationarity of the SIS model [PDF]

open access: yesMathematical Biosciences, 2012
Previous epidemiological studies on SIS model have only considered the dynamic evolution of the mean value and the variance of the infected individuals. In this paper, through cumulant neglection, we use the dynamic equations of all the moments of infected individuals to develop a recursive method to compute the equilibria manifold of the moment ...
José Martins   +2 more
openaire   +4 more sources

Multi-Profile Intergenerational Social Choice [PDF]

open access: yes
Ferejohn and Page transplanted a stationarity axiom from Koopmans' theory of impatience into Arrow's social choice theory with an infinite horizon and showed that the Arrow axioms and stationarity lead to a dictatorship by the first generation.
Bossert, Walter, Suzumura, Kotaro
core   +3 more sources

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