Results 111 to 120 of about 439,454 (357)

Hyers-Ulam-Rassias Stability of Orthogonal Quadratic Functional Equation

, 2013
In this paper, we study the Hyers-Ulam-Rassias stability of the quadratic functional ...
Manoj Kumar, R. Chugh, Ashish
semanticscholar   +1 more source

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

Advanced Photonics Research, EarlyView.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang, Chengwei Fang, Md Osman Ali, Xiaojun Chen, Safa Alghadi, Shuo Li, Jiayuan He, Sithamparanathan Kandeepan   +7 more
wiley   +1 more source

Stability for the Mixed Type of Quartic and Quadratic Functional Equations

Journal of Function Spaces, 2014
We establish the general solutions of the following mixed type of quartic and quadratic functional equation: f(2x+y)+f(2x-y)=4f(x+y)+4f(x-y)+2f(2x)-8f(x)-6f(y).
Young-Su Lee, Soomin Kim, Chaewon Kim
doaj   +1 more source

A functional equation originating from quadratic forms

Journal of Mathematical Analysis and Applications, 2007
AbstractIn this paper, we obtain the general solution and the stability of the 2-variable quadratic functional equationf(x+y,z+w)+f(x−y,z−w)=2f(x,z)+2f(y,w). The quadratic form f(x,y)=ax2+bxy+cy2 is a solution of the above functional equation.
Jae-Hyeong Bae, Won-Gil Park
openaire   +2 more sources

Enhanced Two‐Photon Excited Emission of Quantum Emitters by Colloidal Plasmonic Metasurfaces

Advanced Photonics Research, EarlyView.
Colloidal plasmonic metasurfaces presenting a completely exposed optical cavity are fabricated via templated self‐assembling silver nanoparticles into squared arrays on top of a thin film of CdSe/ZnS quantum dots. The resulting structure promotes the enhancement of the two‐photon absorption and emission processes of the quantum emitter by exploiting ...
Ylli Conti, Xing He, Yen‐Chen Chen, Naihao Chiang, Leonardo Scarabelli   +4 more
wiley   +1 more source

Approximation and analysis regarding the structure of a multiple variable mapping

Boletim da Sociedade Paranaense de Matemática
The article introduces a several variables mapping as the multimixed quadratic-cubic mapping in order to characterize such mappings. It reduces a system of equations defining the multimixed quadratic-cubic mappings to obtain a single functional equation.
Abasalt Bodaghi, Maryam Mosleh, Hemen Dutta   +2 more
doaj   +1 more source

Nearly Ternary Quadratic Higher Derivations on Non-Archimedean Ternary Banach Algebras: A Fixed Point Approach

Abstract and Applied Analysis, 2011
We investigate the stability and superstability of ternary quadratic higher derivations in non-Archimedean ternary algebras by using a version of fixed point theorem via quadratic functional equation.
M. Eshaghi Gordji, M. B. Ghaemi, J. M. Rassias, Badrkhan Alizadeh   +3 more
doaj   +1 more source

Approximate functional equation for Hecke's L-functions of quadratic field [PDF]

, 1969
E. Fogels
openalex   +1 more source

A Wireless Soft Optical Blood Sensor for Colonoscopy

Advanced Sensor Research, EarlyView.
This works presents an “add‐on” wireless soft optical blood sensor for the traditional colonoscopy. It can reliably detect bleeding behind the colonoscope's distal tip camera via optical absorption, without optical fibers, and wirelessly transmit data to the processor.
Kamin Palkawong‐Na‐Ayuddhaya, Arincheyan Gerald, Addison Chu, Johann Pang, Arnav Mankad, Hiroyuki Aihara, Sheila Russo   +6 more
wiley   +1 more source

On the Control of a Linear Functional-Differential Equation with Quadratic Cost [PDF]

, 1970
Harold J. Kushner, Daniel I. Barnea
openalex   +1 more source