Results 11 to 20 of about 68,879 (310)

Weak gravity bounds in asymptotic string compactifications [PDF]

open access: yesJournal of High Energy Physics, 2021
We study the charge-to-mass ratios of BPS states in four-dimensional N $$ \mathcal{N} $$ = 2 supergravities arising from Calabi-Yau threefold compactifications of Type IIB string theory.
Brice Bastian   +2 more
doaj   +2 more sources

Asymptotic symmetries in Carrollian theories of gravity with a negative cosmological constant

open access: yesJournal of High Energy Physics, 2022
Asymptotic symmetries of electric and magnetic Carrollian gravitational theories with a negative cosmological constant Λ are analyzed in 3+1 space-time dimensions.
Alfredo Pérez
doaj   +1 more source

Maximum Likelihood Estimation for Mixed Fractional Vasicek Processes

open access: yesFractal and Fractional, 2022
In this paper, we consider the problem of estimating the drift parameters in the mixed fractional Vasicek model, which is an extended model of the traditional Vasicek model.
Chun-Hao Cai   +3 more
doaj   +1 more source

Asymptotic theory of the transient waves in shells of revolution at shock edge loading of the bending type [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
The present work is devoted to completing the construction of the nonstationary stress-stain state asymptotic theory of shells of revolution at shock edge bending loading.
Kirillova, Irina V.
doaj   +1 more source

Maximum Likelihood Estimation for the Fractional Vasicek Model

open access: yesEconometrics, 2020
This paper estimates the drift parameters in the fractional Vasicek model from a continuous record of observations via maximum likelihood (ML). The asymptotic theory for the ML estimates (MLE) is established in the stationary case, the explosive case ...
Katsuto Tanaka, Weilin Xiao, Jun Yu
doaj   +1 more source

Asymptotic theory for gene mapping. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1994
In genetic linkage mapping, the precision of the location estimate depends on both the number of individuals and the number of markers. Convergence rates and limit laws are established for several situations in which the number of markers depends on the sample size. Practical implications of the results are discussed.
Kong, Augustine, Wright, Fred
openaire   +3 more sources

Validation of a Mathematical Model for Green Algae (Raphidocelis Subcapitata) Growth and Implications for a Coupled Dynamical System with Daphnia Magna

open access: yesApplied Sciences, 2016
Toxicity testing in populations probes for responses in demographic variables to anthropogenic or natural chemical changes in the environment. Importantly, these tests are primarily performed on species in isolation of adjacent tropic levels in their ...
Michael Stemkovski   +3 more
doaj   +1 more source

Generalized Information Matrix Tests for Detecting Model Misspecification

open access: yesEconometrics, 2016
Generalized Information Matrix Tests (GIMTs) have recently been used for detecting the presence of misspecification in regression models in both randomized controlled trials and observational studies.
Richard M. Golden   +3 more
doaj   +1 more source

On asymptotic dark energy in string theory

open access: yesJournal of High Energy Physics, 2023
We examine bounds on accelerated expansion in asymptotic regions of the moduli space in string theory compactifications to four spacetime dimensions. While there are conjectures that forbid or constrain accelerated expansion in such asymptotic regions ...
Sera Cremonini   +4 more
doaj   +1 more source

Consistency and asymptotic normality of the maximum likelihood estimator in a zero-inflated generalized Poisson regression [PDF]

open access: yes, 2005
Poisson regression models for count variables have been utilized in many applications. However, in many problems overdispersion and zero-inflation occur.
Min, Aleksey, Czado, Claudia
core   +1 more source

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