Results 11 to 20 of about 275,582 (319)

Point Orthogonal Projection onto a Spatial Algebraic Curve

open access: yesMathematics, 2020
Point orthogonal projection onto a spatial algebraic curve plays an important role in computer graphics, computer-aided geometric design, etc. We propose an algorithm for point orthogonal projection onto a spatial algebraic curve based on Newton’s ...
Taixia Cheng   +3 more
doaj   +1 more source

A Topological View of Reed–Solomon Codes

open access: yesMathematics, 2021
We studied a particular class of well known error-correcting codes known as Reed–Solomon codes. We constructed RS codes as algebraic-geometric codes from the normal rational curve.
Alberto Besana, Cristina Martínez
doaj   +1 more source

Cherednik Algebras for Algebraic Curves [PDF]

open access: yes, 2010
For any smooth algebraic curve C, Pavel Etingof introduced a `global' Cherednik algebra as a natural deformation of the cross product of the algebra of differential operators on C^n and the symmetric group. We provide a construction of the global Cherednik algebra in terms of quantumn Hamiltonian reduction. We study a category of character D-modules on
Michael Finkelberg, Victor Ginzburg
openaire   +3 more sources

Quadratic systems with a symmetrical solution

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
In this paper we study the existence and uniqueness of limit cycles for so-called quadratic systems with a symmetrical solution: \begin{equation*} \begin{split} \frac{dx(t)}{dt}& = P_2(x,y) \equiv a_{00}+a_{10}x+a_{01}y+a_{20}x^2+a_{11}xy+a_{02}y^2 ...
Andre Zegeling, Robert Kooij
doaj   +1 more source

Application of Said Ball Curve for Solving Fractional Differential-Algebraic Equations

open access: yesMathematics, 2021
The aim of this paper is to apply the Said Ball curve (SBC) to find the approximate solution of fractional differential-algebraic equations (FDAEs). This method can be applied to solve various types of fractional order differential equations. Convergence
Fateme Ghomanjani, Samad Noeiaghdam
doaj   +1 more source

On the growth of mth derivatives of algebraic polynomials in the weighted Lebesgue space

open access: yesApplied Mathematics in Science and Engineering, 2022
In this paper, we study the growth of the mth derivative of an arbitrary algebraic polynomial in bounded and unbounded general domains of the complex plane in weighted Lebesgue spaces.
F. G. Abdullayev, M. Imashkyzy
doaj   +1 more source

Computational algebra and algebraic curves [PDF]

open access: yesACM SIGSAM Bulletin, 2003
The development of computational techniques in the last decade has made possible to attack some classical problems of algebraic geometry. In this survey, we briefly describe some open problems related to algebraic curves which can be approached from a computational viewpoint.
openaire   +3 more sources

On some inequalities for derivatives of algebraic polynomials in unbounded regions with angles

open access: yesMANAS: Journal of Engineering, 2021
In this work we study Bernstein-Walsh-type estimations for the derivative of an arbitrary algebraic polynomial in regions with interior zero and exterior non zero angles.
Cevahir Doğanay Gün
doaj   +1 more source

On the topology of planar algebraic curves [PDF]

open access: yesProceedings of the twenty-fifth annual symposium on Computational geometry, 2009
We introduce a method to compute the topology of planar algebraic curves. The curve may not be in generic position and may have vertical asymptotes. The algebraic tools are rational univariate representation for zero-dimensional ideals and multiplicities in these ideals. Experiments show the efficiency of our algorithm.
Cheng, Jinsan   +5 more
openaire   +6 more sources

Bayesian Parameterization of Continuum Battery Models from Featurized Electrochemical Measurements Considering Noise**

open access: yesBatteries &Supercaps, Volume 6, Issue 1, January 2023., 2023
We introduce a computer algorithm that incorporates the experience of battery researchers to extract information from experimental data reproducibly. This enables the fitting of complex models that take up to a few minutes to simulate. For validation, we process full‐cell GITT measurements to characterize the diffusivities of both electrodes non ...
Yannick Kuhn   +3 more
wiley   +1 more source

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