Results 61 to 70 of about 11,706 (202)

On pointwise convergence of cone multipliers

Journal of Functional Analysis
For $p\ge 2$, and $λ>\max\{n|\tfrac 1p-\tfrac 12|-\tfrac12, 0\}$, we prove the pointwise convergence of cone multipliers, i.e. $$ \lim_{t\to\infty}T_t^λ(f)\to f \text{ a.e.},$$ where $f\in L^p(\mathbb R^n)$ satisfies $supp\ \widehat f\subset\{ξ\in\mathbb R^n:\ 1<|ξ_n|<2\}$.
Peng Chen, Danqing He, Xiaochun Li, Lixin Yan   +3 more
openaire   +2 more sources

Fractional derivatives of pointwise multipliers between holomorphic spaces

Annales Academiae Scientiarum Fennicae Mathematica, 2016
Summary: We study the action of fractional differential type operators on the space of pointwise multipliers between holomorphic Triebel-Lizorkin spaces on the unit ball \(\mathbb{B}\) of \(\mathbb{C}^n\). As an application, we obtain new characterizations and examples of multipliers on Hardy-Sobolev spaces, and we improve some well-known results about
Cascante, Carme, Fàbrega, Joan, Ortega, Joaquin M.   +2 more
openaire   +2 more sources

Rotatable Lens‐Based 3D Reconstruction Method for Monocular Vision Systems

SmartBot, EarlyView.
Accurate 3D reconstruction in confined environments remains challenging because conventional vision‐based measurement systems are difficult to maintain compactness without sacrificing accuracy. Here, the authors develop a rotatable lens‐based monocular vision system, which is the first time using the refraction of the light induced by a rotating wedge ...
Puchen Zhu, Zhanpeng Huang, Wenkai Lai, Xiaoyin Zheng, Yiding Nie, Yang Liu, Jiajun An, Daifeng Wang, Dongliang Fan, Xiao Li, Jian S. Dai, Xin Ma   +11 more
wiley   +1 more source

Development and Validation of a Next‐Generation Mechanistic Model of the Electric Arc Furnace

steel research international, EarlyView.
This study presents a next‐generation mechanistic model of the electric arc furnace (EAF). It describes equations for all crucial processes appearing during the steel‐recycling process in an EAF, i.e., thermal, mass, and chemical. The model was parameterized and validated using industrial EAF data.
Vito Logar, Igor Škrjanc
wiley   +1 more source

Variation in food availability affects the population age structure of Atlantic puffins Fratercula arctica in the Faroe Islands

Wildlife Biology, EarlyView.
Across their entire Atlantic breeding range, Atlantic puffins Fratercula arctica have experienced decreases in food availability, often leading to population declines. The species is one of the most numerous seabirds in Føroyar (the Faroe Islands, in English) but has faced apparent, unquantified population declines.
Anne N.M.A. Ausems, Dariusz Jakubas, Jens–Kjeld Jensen, Katarzyna Wojczulanis–Jakubas   +3 more
wiley   +1 more source

Mesopic microperimetry in Stargardt disease: Application and reliability

Acta Ophthalmologica, EarlyView.
Abstract Purpose Mesopic microperimetry (mMP) is a promising functional endpoint in clinical trials for Stargardt disease type 1 (STGD1). This study evaluated the test–retest variability of mMP and influencing factors, which is essential for ensuring reliability in future STGD1 trials.
Sybren H. Kootstra, Jeroen A. A. H. Pas, Patty P. A. Dhooge, Steffen Schmitz‐Valckenberg, Maurizio Battaglia Parodi, Philipp Herrmann, Frank G. Holz, Andrew J. Lotery, Katarina Stingl, Thomas H. Wheeler‐Schilling, Camiel J. F. Boon, Carel B. Hoyng, Soraprazan Consortium   +12 more
wiley   +1 more source

Computing Skinning Weights via Convex Duality

Computer 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

Pointwise multipliers for functions of weighted bounded mean oscillation [PDF]

Studia Mathematica, 1993
Summary: For \(w: \mathbb{R}^ n\times \mathbb{R}_ +\to \mathbb{R}_ +\) and \(1\leq ...
openaire   +1 more source

A Real‐Time Multi‐Scale Neural Representation for Complex Surface Reflectance

Computer Graphics Forum, EarlyView.
Abstract Recent machine learning methods have significantly advanced the state of the art in the classic problem of representing surface appearance over angle, space, and scale. The models tend, however, to be relatively heavy compared to traditional fixed‐function representations, making real‐time application challenging.
Heikki Timonen, Pauli Kemppinen, Jaakko Lehtinen   +2 more
wiley   +1 more source

Pointwise multipliers on $L^1$ and related spaces

, 2006
We consider completely continuous and weakly compact multiplication operators on certain classical function spaces, more precisely on Lebesgue spaces $L1$ on spaces $C(K)$ of continuous functions on a compact Hausdorff space K,and on the Hardy space $H1$. We will describe such operators in terms of their defining symbols.
Jarchow, Hans, Labuschagne, Louis E.
openaire   +3 more sources