Results 61 to 70 of about 2,916 (191)

Urban vs. Rural Lifestyles in terms of Theories of Cultural Globalization

open access: yesجامعه شناسی کاربردی, 2013
Introduction   Globalization has indubitably caused local, national, and international sections to meet and intertwine in ways that have historically been unimaginable.
Mohammad Najjarzadeh
doaj  

A novel dual‐decomposition method for non‐convex two‐stage stochastic mixed‐integer quadratically constrained quadratic problems

open access: yesInternational Transactions in Operational Research, Volume 33, Issue 5, Page 3128-3157, September 2026.
Abstract We propose the novel p‐branch‐and‐bound method for solving two‐stage stochastic programming problems whose deterministic equivalents are represented by non‐convex mixed‐integer quadratically constrained quadratic programming (MIQCQP) models. The precision of the solution generated by the p‐branch‐and‐bound method can be arbitrarily adjusted by
Nikita Belyak, Fabricio Oliveira
wiley   +1 more source

The critical Bienaymé-Galton-Watson process

open access: yes, 1977
The existence and uniqueness of invariant measures for the critical, multitype Bienayné-Galton-Watson process is established by proving corresponding results for convex solutions of Abel's functional equation.
Hoppe, Fred M.
core   +1 more source

Existence of absolutely continuous spectrum for Galton-Watson random trees

open access: yes, 2023
International audienceWe establish a quantitative criterion for an operator defined on a Galton-Watson random tree for having an absolutely continuous spectrum.
Arras, Adam, Bordenave, Charles
core   +1 more source

Theoretical foundations, practical applications and pedagogical challenges of the mathematics teacher's specialised knowledge model: A qualitative systematic review in secondary education

open access: yesReview of Education, Volume 14, Issue 2, August 2026.
Abstract This systematic review analyses 32 studies published between 2013 and 2024 on the Mathematics Teacher's Specialised Knowledge (MTSK) model, with the aim of understanding its theoretical development, practical applications and contributions to teacher education in secondary and pre‐university contexts.
Daniel Martín‐Cudero
wiley   +1 more source

On the Watson and Laplace Transformations

open access: yes, 1960
Let k be the kernel of a Watson transformation; that is k(x)/x ϵ L2(0,∞), and if x and y are positive,1Then if g is the transform of F ϵ L2(0,∞), that is if2it i s known that g 2(0,∞), that3and that4For these results see [1; theorem 79].
P. G. Rooney, C. Schubert
core   +1 more source

Automated Bandwidth Selection for Inference in Linear Models With Time‐Varying Coefficients

open access: yesJournal of Time Series Analysis, Volume 47, Issue 4, Page 854-875, July 2026.
ABSTRACT The problem of selecting the smoothing parameter, or bandwidth, for kernel‐based estimators of time‐varying coefficients in linear models with possibly endogenous explanatory variables is considered. We examine automated bandwidth selection by means of cross‐validation, a nonparametric variant of Akaike's information criterion, and bootstrap ...
Charisios Grivas, Zacharias Psaradakis
wiley   +1 more source

Central limit theorems for the integrated squared error of derivative estimators [PDF]

open access: yes
A central limit theorem for the weighted integrated squared error of kernel type estimators of the first two derivatives of a nonparametric regression function is proved by using results for martingale differences and U-statistics.
Birke, Melanie
core  

Some Limit Theorems on a Supercritical Simple Galton-Watson Process

open access: yesThe Annals of Probability, 1982
Let $X = (X_n; n \geq 0; X_0 = 1)$ be a supercritical Galton-Watson process possessing an offspring mean $1 < m < \infty$, and variance $0 < \sigma^2 < \infty$. The limiting distribution of $\{X^{-1/2}_n(X_{n+r} - \hat{m}^rX_n); r = 2, \cdots, T\}$ where $\hat{m} = X_{n+1}/X_n$, is obtained. As a consequence of this result a Quenouille-Bartlett type of
Venkataraman, K. N., Nanthi, K.
openaire   +2 more sources

On Using the Shapley Value for Anomaly Localization: A Statistical Investigation

open access: yesApplied AI Letters, Volume 7, Issue 2, June 2026.
ABSTRACT Recent publications have suggested using the Shapley value for anomaly localization for sensor data systems. We use a reasonable statistical model for the classifiers required to compute the Shapley value to provide repeatable and rigorous analysis in the anomaly localization application.
Rick S. Blum   +2 more
wiley   +1 more source

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