Results 31 to 40 of about 613 (131)
Algebraic invariants of links and 3-manifolds [PDF]
, 2015 The goal of this thesis is to describe certain algebraic invariants of links, and try to modify them to obtain invariants of 3-manifolds. Racks and quandles are algebraic structures that were invented to give invariants of knots and links.
Ødegaard, Reidun P
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Laser &Photonics Reviews, EarlyView.ABSTRACT The growing demands of artificial intelligence require new energy‐efficient and nonvolatile computing paradigms. To meet this challenge, we demonstrate a foundational device platform for optical fiber computing that targets the signal decay and power consumption bottlenecks of conventional systems.
Yule Zhang +18 more
wiley +1 more source
Unnatural Wills: Inheritance Disputes and Inequality
The British Journal of Sociology, EarlyView.ABSTRACT Within the conceptual frame of relational economic sociology, inheritance disputes are a canonical form of relational mismatch. But the social patterning of relational mismatches, and their various ties to inequality, remain murky. In this paper, I examine all known inheritance disputes in Dallas from 1895–1945 within their social context to ...
Shay O'Brien
wiley +1 more source
Four-manifolds, geometries and knots
, 2022 The goal of this book is to characterize algebraically the closed 4-manifolds that fibre nontrivially or admit geometries in the sense of Thurston, or which are obtained by surgery on 2-knots, and to provide a reference for the topology of such manifolds
Hillman, Jonathan
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Economic Record, EarlyView.We study the effects of heat and high temperature shocks on inflation in Australia using monthly, state‐level temperature anomaly data via two stages. In the first stage, we decompose temperature anomalies into orthogonal components using a structural vector autoregression with long‐run restrictions.
Tan Dat Huynh, Mengheng Li
wiley +1 more source
Vassiliev invariants of Legendrian, transverse, and framed knots in contact three-manifolds
, 2003 We show that for a large class of contact three-manifolds the groups of Vassiliev invariants of Legendrian and of framed knots are canonically isomorphic. As a corollary, we obtain that the group of finite order Arnold's J+-type invariants of wave fronts
Tchernov, Vladimir, Tchernov, V.
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Register‐Efficient Linear‐Time Evaluation in the Bernstein Basis
Computer Graphics Forum, EarlyView.Abstract We investigate the evaluation of points and derivatives of Bézier curves and surfaces on modern architectures, focusing on performance and guided by numerical error bounds. While the de Casteljau algorithm remains the reference for numerical robustness, its linear working‐set size imposes substantial register pressure on GPUs.
Gábor Valasek, Anna Lili Horváth
wiley +1 more source
Conservation Science and Practice, EarlyView.Researchers combined aerial and ground surveys to map baobab distribution and assess elephant herbivory impacts on baobabs across Karingani Game Reserve, Mozambique. Researchers found that aerial surveys were an effective tool for mapping baobabs and that baobabs were more likely to occur closer to permanent water, at lower elevations, and in areas ...
Audrey Y. Chin +4 more
wiley +1 more source
Measuring Frame Evolution: Smoothed Temporal Framing Trajectories in Complex Policy Debates
JCMS: Journal of Common Market Studies, EarlyView.Abstract The European Union faces long‐term governance challenges in contested domains, such as migration management, health data sharing, and facial recognition technology. Across these fields, political debates are shaped by shifting ways in which actors frame problems and solutions. Understanding how such framing contests evolve over time is crucial
Philip Leifeld, Kristijan Garic
wiley +1 more source
Density‐Valued ARMA Models by Spline Mixtures
Journal of Time Series Analysis, EarlyView.ABSTRACT This paper proposes a novel framework for modeling time series of probability density functions by extending autoregressive moving average (ARMA) models to density‐valued data. The method is based on a transformation approach, wherein each density function on a compact domain [0,1]d$$ {\left[0,1\right]}^d $$ is approximated by a B‐spline ...
Yasumasa Matsuda, Rei Iwafuchi
wiley +1 more source