Results 161 to 170 of about 797,150 (338)
Brief introduction to distributions and to Hörmander spaces Bp,k
Partial differential equations (PDE’s) are, we believe, little known in our country, especially at a medium-advanced level, in particular, their historical roots and methods developed in their evolution.
Alejandro Ortiz Fernández
doaj +1 more source
Algebra continues to be the focus of reform efforts and research in mathematics education in many countries worldwide (e.g., Kieran, 1992 & 2006; National Council of Teachers of Mathematics (NCTM), 2000; Watson, 2009). There is a general concern (e.g., from policy makers, teachers and Higher Education councils) that students leave compulsory schooling ...
Kirsti Klette+2 more
openaire +2 more sources
Topological Line Defect Waveguide
The work unveils the prevalence of topological modes across diverse photonic crystal platforms by experimentally demonstrating topological transport in conventional line‐defect waveguides. Interfacial waveguides are utilized as mode convertors to selectively excite topological states in photonic crystal systems.
Nikhil Navaratna+2 more
wiley +1 more source
This study reveals the critical influence of film thickness and excitation wavelength on the ASE threshold in metal halide perovskites. By optimizing these factors, the ASE threshold is significantly reduced, providing key insights into optical confinement and carrier distribution for advancing electrically pumped perovskite lasers.
Yulin Mao+7 more
wiley +1 more source
The meaningfulness of math learning in multiplication material is still lacking. This can be seen from students who do not care when they get low results in multiplication learning and are considered boring for students.
Indria Kusumawati+2 more
doaj +1 more source
Contribution of equal-sign instruction beyond word-problem tutoring for third-grade students with mathematics difficulty. [PDF]
Sarah R. Powell, Lynn S. Fuchs
openalex +1 more source
An enhanced homogenization method for periodic lattices, applicable to any asymmetrical multipart structures, is proposed. This method simplifies intricate gratings into slab waveguides, predicts guided‐mode resonances and bound states in the continuum, without relying on numerical methods.
Atefe Taheri, Mehrdad Shokooh‐Saremi
wiley +1 more source
Information dissemination and confusion in signed networks [PDF]
We introduce a model of information dissemination in signed networks. It is a discrete-time process in which uninformed actors incrementally receive information from their informed neighbors or from the outside. Our goal is to minimize the number of confused actors - that is, the number of actors who receive contradictory information.
arxiv
This work introduces a low‐loss diffractive neural network, fabricated using an imprinting technique with parowax material, for recognizing and manipulating the topological charge of orbital angular momentum (OAM) waves. It is also demonstrated that the low‐loss diffractive network can perform mathematical operations based on the topological charges of
Wei Jia+4 more
wiley +1 more source
Extraction of Inherent Amplitude Mode from a Light Beam
Mode extraction is the inverse process of the double‐beam superposition principle in classical optics. While polarization mode extraction has been successfully demonstrated using an m‐order vector vortex beam, this article demonstrates the amplitude mode extraction of a light beam.
Zhiyang Xia+6 more
wiley +1 more source