Results 51 to 60 of about 204,283 (225)

Non-Euclidean geometry and Weierstrassian mathematics: The background to Killing's work on Lie algebras

open access: yesHistoria Mathematica, 1980
Between 1888 and 1890 Wilhelm Killing published a series of papers in the Mathematische Annalen entitled ``Die Zusammensetzung der stetigen endlichen Transformationsgruppen''. The entire theory of the structure of semisimple Lie algebras originates in these papers. The author discusses in detail the question how and why W.
openaire   +3 more sources

On an Aggregation Theory for Indicators Expressing Behaviors of Complex Systems With an Application to Sustainability

open access: yesSustainable Development, EarlyView.
ABSTRACT Certain attributes of large‐scale complex systems are often expressed through sets of indicators. For example, the sustainability of an entity, be it a nation, a city, an energy system, a corporation etc., can be effectively represented by indicators and corresponding data series.
Vassilis S. Kouikoglou   +1 more
wiley   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

Examining associations between foundational and complex mathematics skills in people with Down syndrome and typically developing children

open access: yesBritish Journal of Developmental Psychology, EarlyView.
Abstract Acquiring mathematical competence is essential to independent living. In this study, we investigated the mathematics profile in young people with Down syndrome (DS), and the relations between foundational and more complex mathematics skills.
Su Morris   +2 more
wiley   +1 more source

Beyond performance: Emotions before and after semi‐high‐stakes mathematics testing among school‐aged students

open access: yesBritish Journal of Educational Psychology, EarlyView.
Abstract Background Previous research has shown that testing differs significantly from other classroom activities and is associated with heightened negative emotions and lower levels of positive emotions. However, relatively little is known about students' emotions surrounding testing, particularly in higher‐stakes assessment settings. Aims This study
Reetta Kyynäräinen   +5 more
wiley   +1 more source

Mathematics anxiety: Effects of age, gender and culture

open access: yesBritish Journal of Educational Psychology, EarlyView.
Abstract Background Many studies have indicated that mathematics anxiety is a significant problem for many people and is an important topic for research. Mathematics anxiety is multidimensional. In particular, it is important to distinguish between worry and emotionality components, and between trait and state anxiety.
Ann Dowker
wiley   +1 more source

Computing Skinning Weights via Convex Duality

open access: yesComputer Graphics Forum, EarlyView.
We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley   +1 more source

MATHEMATICS OF THE FÂ: CASE OF ALGEBRA AND GEOMETRY

open access: yesUniversal Journal of Mathematics and Mathematical Sciences, 2021
d’ALMEIDA Zokpé Zoki   +1 more
openaire   +1 more source

Neural Local Inter‐reflection Modeling for Garment Fold Rendering

open access: yesComputer Graphics Forum, EarlyView.
Abstract Realistic garment rendering requires simulating complex multi‐bounce light paths within intricate fold geometries. In these regions, conventional path tracing is computationally expensive as light becomes trapped, necessitating high bounce counts for convergence.
Jooeun Son   +4 more
wiley   +1 more source

Edge‐preserving noise for diffusion models

open access: yesComputer Graphics Forum, EarlyView.
Abstract Classical diffusion models typically rely on isotropic Gaussian noise, treating all regions uniformly and overlooking structural information important for high‐quality generation. We introduce an edge‐preserving diffusion process that generalizes isotropic models via a hybrid noise scheme with an edge‐aware scheduler that smoothly transitions ...
Jente Vandersanden   +3 more
wiley   +1 more source

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