Results 101 to 110 of about 1,501,853 (289)

Are Australian students' academic skills declining? Interrogating 25 years of national and international standardised assessment data

Australian Journal of Social Issues, EarlyView.
Abstract Standardised tests of academic basic skills are an established feature of contemporary Australian schooling. Assessment results are widely reported and directly influence educational policymaking. Furthermore, Australian national educational priorities are linked to educational system accountability via the results of standardised tests. Given
Sally A. Larsen
wiley   +1 more source

Localized and Extended Phases in Square Moiré Patterns

Annalen der Physik, EarlyView.
Rotated superimposed lattices in two dimensions, the termed moiré patterns, represent a clear example of how the structure affects the physical properties of a particle moving on it. A robust numerical treatment of continuous and discrete models leads to confirm that while localized states result from angles that produce non‐commensurable lattices ...
C. Madroñero, G. A. Domínguez‐Castro, R. Paredes   +2 more
wiley   +1 more source

Algebraic Properties of Arbitrage: An Application to Additivity of Discount Functions

Mathematics, 2019
Background: This paper aims to characterize the absence of arbitrage in the context of the Arbitrage Theory proposed by Kreps (1981) and Clark (2000) which involves a certain number of well-known financial markets.
Salvador Cruz Rambaud
doaj   +1 more source

An Algebraic Roadmap of Particle Theories

Annalen der Physik, EarlyView.
The SO(10) grand unified theory, the Georgi–Glashow SU(5) grand unified theory, the Pati–Salam model, the Left–Right Symmetric model, and the Standard model have been studied extensively since the 1970s. Recasting these models in a division algebraic language elucidates how they are each in fact connected.
N. Furey
wiley   +1 more source

The SHARK integral generation and digestion system

Journal of Computational Chemistry, Volume 44, Issue 3, Page 381-396, January 30, 2023., 2023
The BLAS level 3‐driven SHARK integral generation and digestion library is introduced and it is discussed how it leads to greatly simplified workflows and substantial computational speedups. Abstract In this paper, the SHARK integral generation and digestion engine is described.
Frank Neese
wiley   +1 more source

An Algebraic Roadmap of Particle Theories Part II: Theoretical Checkpoints

Annalen der Physik, EarlyView.
Algebraic models of particle physics are often met with recurring obstacles. An ideal algebraic model should ‘1e conform to the Coleman‐Mandula theorem, ‘2e evade familiar fermion doubling problems, ‘3e naturally explain the Standard Model's chirality, ‘4e exclude B‐L gauge symmetry at low energy, and ‘5e explain the existence of three generations ...
Nichol Furey
wiley   +1 more source

Automated handling of complex chemical structures in Z‐matrix coordinates—The chemcoord library

Journal of Computational Chemistry, Volume 44, Issue 5, Page 710-726, February 15, 2023., 2023
We propose an algorithm for a chemically intuitive automatically generated Z‐matrix representation, including reliable back‐and‐forth transformation between coordinate spaces while properly handling linear dependencies. The usefulness of the method is showcased for molecule manipulation and initial guesses of reaction pathways.
Oskar Weser, Björn Hein‐Janke, Ricardo A. Mata   +2 more
wiley   +1 more source

Some geometric aspects of finite abelian groups [PDF]

Rendiconti di Matematica e delle Sue Applicazioni, 2006
Let Π be a finite projective plane admitting a large abelian collineation group. It is well known that this situation may be studied by algebraic means (via a representation by suitable types of difference sets), namely using group rings and algebraic ...
Dina Ghinelli, Dieter Jungnickel
doaj  

An Algebraic Roadmap of Particle Theories Part III: Intersections

Annalen der Physik, EarlyView.
Three separate group actions of Spin(10), when applied to a spinor, are found to coincide on the Standard Model's internal symmetries. This result is subsequently extended to those Standard Model internal symmetries left unbroken by the Higgs mechanism. Abstract In this study, the detailed symmetry breaking pathways established in Furey et al.
N. Furey
wiley   +1 more source

About some split central simple algebras [PDF]

arXiv, 2014
In this paper we study certain quaternion algebras and symbol algebras which split.
arxiv