Results 101 to 110 of about 53,940 (208)

Definition and Computation of Tensor‐Based Generalized Function Composition

Numerical Linear Algebra with Applications, Volume 33, Issue 1, February 2026.
ABSTRACT Functions are fundamental to mathematics as they offer a structured and analytical framework to express relations between variables. While scalar and matrix‐based functions are well‐established, higher‐order tensor‐based functions have not been as extensively explored.
Remy Boyer
wiley   +1 more source

Geographical Distribution and Socio‐Economic Importance of Raphia ruwenzorica From South‐West of Burundi

Plant-Environment Interactions, Volume 7, Issue 1, February 2026.
ABSTRACT The genus Raphia is among the commonly used and socio‐economically important plants in Africa. While Raphia ruwenzorica species is known to occur in Burundi, eastern Democratic Republic of Congo, Rwanda, and Uganda, its geographical distribution and socioeconomic importance are poorly documented in Burundi. This study maps R.
Jacques Nkengurutse, John Maina Nyongesa, Eric Nimubona, Gaëlle Ndayizeye, Anatole Bukuru, Rosette Irampagarikiye, Marie Violette Niyonsaba, Longin Ndayikeza, Kamaguru Bienvenu Imani, Jérémie Ngezahayo, Yuelin Li   +10 more
wiley   +1 more source

On Best Multiplier Approximation of k-Monotone by Trigonometric Polynomial

Al-Mustansiriyah Journal of Science
The main goal of this paper is to study the degree of the best multiplier approximation of monotone unbounded functions in L_(p,λ_n)-space on the closed interval [-π,π] by means of K-functional, which we represented with, K(f,L_(p,λ_n ),W_(p,λ_n)^1,W ̃_(
Saheb K. Al-Saidy, Hasan W. Maktoof, Abdul Khaleq O. Mazeel, Baba Galadima Agaie   +3 more
doaj   +1 more source

Comprehensive Surrogate Models for Predicting the Melt Conveying Characteristics of Channel Segments in High‐Performance Single‐Screw Extruders

Polymer Engineering &Science, Volume 66, Issue 2, Page 716-738, February 2026.
Generalized analytical equations were developed that accurately predict the local pumping characteristics, viscous dissipation, and average shear rates in channels of both conventional and high‐performance single‐screw extruders. Applied within segmented extruder calculations, these models aid in screw design and process troubleshooting without the ...
Daniel Herzog, Wolfgang Roland, Christian Marschik, Gerald Berger‐Weber   +3 more
wiley   +1 more source

On the approximation by trigonometric polynomials in weighted Lorentz spaces

Journal of Function Spaces and Applications, 2010
We obtain estimates of structural characteristics of 2π-periodic functions by the best trigonometric approximations in weighted Lorentz spaces, and show that the order of generalized modulus of smoothness depends not only on the rate of the best ...
Vakhtang Kokilashvili, Yunus E. Yildirir
doaj   +1 more source

Design and Analysis for Digital Twin Optimization

Quality and Reliability Engineering International, Volume 42, Issue 1, Page 80-92, February 2026.
ABSTRACT Digital twins (DTs) provide dynamic, virtual representations of physical systems, facilitating real‐time monitoring, prediction, and optimization through the integration of sensor data, computational models, and feedback mechanisms. Despite their potential, deploying DTs in complex systems often entails substantial computational costs.
Xueru Zhang, Dennis K. J. Lin, Peiyao Liu   +2 more
wiley   +1 more source

Twists and Turns of Liquid Crystals Unravelled by Small‐Angle Scattering

Small Methods, Volume 10, Issue 3, 9 February 2026.
X‐ray scattering provides valuable insights into material structure and self‐assembly. This review discusses the use of small‐ and wide‐angle X‐ray scattering (SWAXS) as well as grazing incident SWAXS for examining self‐assembled systems, especially liquid crystals.
Jessie Wong, Jean‐Luc Brousseau, Hatem M. Titi   +2 more
wiley   +1 more source

Testing Volcano Deformation Models Against 3D Seismic Reflection Imagery of Ancient Intrusions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Magma intrusion often drives uplift of the overburden and free surface. Analytical modeling of such surface uplift at active volcanoes allows us to estimate intrusion geometries and positions, as well as volume and pressure changes; these insights have proven critical to forecasting volcanic unrest and eruptions. However, it is rarely possible
C. Magee, S. K. Ebmeier, J. Hickey
wiley   +1 more source

Storm Wind Flow and Sediment Dynamics on Adjacent Coastal Dunes With Contrasting Morphologies During One Storm Event

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract This study presents the first high‐resolution spatial and temporal analysis of wind flow, sediment transport and topographic evolution under simultaneous storm conditions across two morphologically contrasting beach‐dune systems, characterized by a gently sloping dune face (11°) and a steep, scarped dune face (36°).
N. Robin, C. René, A. Lamy, A. Nicolae Lerma, B. Castelle, P. A. Hesp, O. Raynal, O. Burvingt, D. Rosebery   +8 more
wiley   +1 more source

The Approximation of Functions of Several Variables with Bounded p-Fluctuation by Polynomials in the Walsh System

Mathematics
This paper presents direct and inverse theorems concerning the approximation of functions of several variables with bounded p-fluctuation using Walsh polynomials.
Talgat Akhazhanov, Dauren Matin, Zhuldyz Baituyakova   +2 more
doaj   +1 more source