Results 51 to 60 of about 846 (138)

On Testing for Independence Between Generalized Error Models of Several Time Series

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT We define generalized innovations associated with generalized error models having arbitrary distributions, that is, distributions that can be mixtures of continuous and discrete distributions. These models include stochastic volatility models and regime‐switching models with possibly zero‐inflated regimes.
Kilani Ghoudi   +2 more
wiley   +1 more source

Unveiling Lasting Impact: A Cultural‐Historical Activity Theory Perspective on Original Participants in an Afterschool STEM Club

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT The Girls Excelling in Math and Science (GEMS) club is a long‐standing afterschool STEM program (1994–present). The study investigates the features of GEMS by exploring retrospective experiences of a group of original GEMS girls (OGGs) who attended GEMS in 1994–1995. Survey data were collected from 14 OGGs and in‐depth interview data from nine
Lili Zhou
wiley   +1 more source

Abelian number fields with frobenian conditions

open access: yesMathematika, Volume 72, Issue 4, October 2026.
Abstract We study the distribution of abelian number fields with frobenian conditions imposed on the conductor. In particular, we find an asymptotic for the number of abelian field extensions of a number field k$k$ whose conductor is the sum of two squares. We also discuss an application of the Brauer group of stacks to quadratic number fields.
Julie Tavernier
wiley   +1 more source

Inductive Differential Constraint Method: Symbolic Regression‐Based Partial Differential Equation Regularization for Fatigue Crack Growth Prediction

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 15, 15 August 2026.
ABSTRACT This study introduces the inductive differential constraint method (IDCM), a data‐informed structural regularization framework that enhances neural network predictions under data‐scarce regimes by enforcing invariant differential structures extracted from simulation data.
Rekisei Ozawa, Yoshitaka Wada
wiley   +1 more source

Duality, asymptotic charges and higher form symmetries in p-form gauge theories

open access: yesEuropean Physical Journal C: Particles and Fields
The surface charges associated with p-form gauge fields in the Bondi patch of D-dimensional Minkowski spacetime are computed. We show that, under the Hodge duality between the field strengths of the dual formulations, electric-like charges for p-forms ...
Federico Manzoni
doaj   +1 more source

A Novel Scheme for Construction of S-Box Using Action of Power Associative Loop and Its Applications in Text Encryption

open access: yesIEEE Access
Substitution boxes (S-boxes) play an important role in symmetric key cryptography because they add complexity and resist cryptanalysis, improving the overall security of encrypted data.
Muhammad Asif   +3 more
doaj   +1 more source

Emergent Spatial Structure and Entanglement Localization in Floquet Conformal Field Theory

open access: yesPhysical Review X, 2020
We study the energy and entanglement dynamics of (1+1)D conformal field theories (CFTs) under a Floquet drive with the sine-square deformed (SSD) Hamiltonian. Previous work has shown that this model supports both a nonheating and a heating phase.
Ruihua Fan   +3 more
doaj   +1 more source

A Novel Image Encryption Technique Based on Mobius Transformation. [PDF]

open access: yesComput Intell Neurosci, 2021
Asif M   +5 more
europepmc   +1 more source

Initial experience of clinical implementation of an Online Simulation‐free CBCT‐based Adaptive Radiotherapy (OSCAR) workflow for palliative and urgent treatment indications

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background The current standard radiotherapy treatment planning workflow typically requires several hours to days, during which patients must wait before treatment can be initiated. In certain oncological situations, however, treatment should commence as soon as possible.
Robert Schindhelm   +14 more
wiley   +1 more source

Conformally related vacuum gravitational waves and their symmetries

open access: yesJournal of High Energy Physics
A special conformal transformation which carries a vacuum gravitational wave into another vacuum one is built by using Möbius-redefined time. It can either transform a globally defined vacuum wave into a vacuum sandwich wave, or carry the gravitational ...
Q. L. Zhao, P. M. Zhang, P. A. Horváthy
doaj   +1 more source

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