Results 71 to 80 of about 27,120 (203)

On Solution of Fredholm Integrodifferential Equations Using Composite Chebyshev Finite Difference Method

open access: yesAbstract and Applied Analysis, 2013
A new numerical method is introduced for solving linear Fredholm integrodifferential equations which is based on a hybrid of block-pulse functions and Chebyshev polynomials using the well-known Chebyshev-Gauss-Lobatto collocation points.
Z. Pashazadeh Atabakan   +2 more
doaj   +1 more source

GENERATING FUNCTIONS OF THE PRODUCT OF 2-ORTHOGONAL CHEBYSHEV POLYNOMIALS WITH SOME NUMBERS AND THE OTHER CHEBYSHEV POLYNOMIALS

open access: yesПроблемы анализа, 2020
In this paper, we give the generating functions of binary product between 2-orthogonal Chebyshev polynomials and kFibonacci, k-Pell, k-Jacobsthal numbers and the other orthogonal Chebyshev polynomials.
H. Merzouk, B. Aloui, A. Boussayoud
doaj   +1 more source

Chebyshev polynomial approximation to approximate partial differential equations [PDF]

open access: yes
This pa per suggests a simple method based on Chebyshev approximation at Chebyshev nodes to approximate partial differential equations. The methodology simply consists in determining the value function by using a set of nodes and basis functions.
Guglielmo Maria Caporale, Mario Cerrato
core  

A family of Chebyshev-Halley type methods in Banach spaces [PDF]

open access: yes, 1997
A family of third-order iterative processes (that includes Chebyshev and Halley's methods) is studied in Banach spaces. Results on convergence and uniqueness of solution are given, as well as error estimates.
Gutiérrez, J.M. [0000-0002-0434-7250]   +1 more
core   +1 more source

Polynomial‐shaped electrodes for adaptive X‐ray optics

open access: yesJournal of Synchrotron Radiation, EarlyView.
A shaped electrode design for lithium niobate adaptive X‐ray mirrors connects actuator degrees of freedom to specific polynomial orders, enabling general shape control and the correction of defocus, coma and fourth‐order aberrations with a limited number of inputs.For adaptive mirrors on X‐ray beamlines and optical systems, we describe a strategy for ...
Kenneth A. Goldberg   +2 more
wiley   +1 more source

Generalization and solution methods of the Chebyshev-Hermite and Chebyshev-Laguerre type equations [PDF]

open access: yes, 2000
Fen Bilimleri Enstitüsü, Matematik Ana Bilim Dalım ÖZET CHEBYSHEV-HERMİTE VE CHEBYSHEV-LAGUERRE TİPLİ DENKLEM SINIFLARININ GENELLEŞTİRİLMESİ VE ÇÖZÜM YÖNTEMLERİ TUNA, Adnan Niğde Üniversitesi Fen Bilimleri Enstitüsü Matematik Ana Bilim Dalı Danışman ...
Tuna, Adnan
core   +1 more source

Shifted-modified Chebyshev filters

open access: yes, 2013
This paper introduces a new type of filter approximation method that utilizes shifted-modified Chebyshev filters. Construction of the new filters involves the use of shifted-modified Chebyshev polynomials that are formed using the roots of conventional ...
Şengül, Metin Y.
core   +1 more source

NAADF: Globally Illuminated Voxel Worlds Accelerated with Nested Axis‐Aligned Distance Fields

open access: yesComputer Graphics Forum, EarlyView.
Abstract Achieving realistic rendering of 3D scenes in real time using path tracing is challenging due to the high sample count required, with ray tracing as the bottleneck. Focusing on voxels as a geometry representation offers significant opportunities for optimizations, especially for tracing the rays, but also for computing the samples.
A. Ulschmid   +4 more
wiley   +1 more source

Parallel Vectors Extraction using Bézier Clipping

open access: yesComputer Graphics Forum, EarlyView.
Abstract In this paper, we propose a novel local feature extraction algorithm for the parallel vectors (PV) operator. Our method is based on Bézier clipping, which is a bracketing‐based root finding method that is commonly‐used in computer‐aided geometric design.
Nico Daßler, Tobias Günther
wiley   +1 more source

General convergence of the methods from Chebyshev-Halley family

open access: yesJournal of Numerical Analysis and Approximation Theory, 2008
In this paper we study the Chebyshev-Halley family (which contains, as particular cases, the Chebyshev method, Halley method, super-Halley method and the C-method). For Chebyshev and super-Halley methods we give a global theorem of convergence.
Raluca Anamaria Pomian
doaj   +2 more sources

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