Results 11 to 20 of about 449,344 (264)

Tangent Graeffe Iteration [PDF]

open access: yesNumerische Mathematik, 1999
Graeffe iteration was the choice algorithm for solving univariate polynomials in the XIX-th and early XX-th century. In this paper, a new variation of Graeffe iteration is given, suitable to IEEE floating-point arithmetics of modern digital computers. We
Malajovich, Gregorio, Zubelli, Jorge P.
core   +5 more sources

Tangent algebras [PDF]

open access: yesTransactions of the American Mathematical Society, 2012
\noindent We study the Zariski tangent cone $T_X\stackrel {\lar} X$ to an affine variety $X$ and the closure $\bar{T}_X$ of $ ^{-1}({\rm Reg}(X))$ in $T_X$. We focus on the comparison between $T_X$ and $\bar{T}_X$, giving sufficient conditions on $X$ in order that $T_X=\bar{T}_X$.
Simis, Aron   +2 more
openaire   +3 more sources

SOME WAYS OF SOLVING TRIGONOMETRIC EQUATIONS IN SECONDARY SCHOOL [PDF]

open access: yesVestnik Issyk-Kulʹskogo universiteta
The scientific article discusses methods for solving trigonometric equations in the high school mathematics course. Trigonometric equations are one of the most important topics in high school mathematics.
Nazarbaeva M. T.   +2 more
doaj   +1 more source

Affine transformations of the tangent bundle of a common path space

open access: yesДифференциальная геометрия многообразий фигур, 2023
In this paper, we study infinitesimal transformations of the tangent bundle of a common path space. The general path space is a genera­liza­tion space of the affine connectivity.
N. D. Nikitin, O. G. Nikitina
doaj   +1 more source

An Optimal Algorithm for the Separating Common Tangents of two Polygons [PDF]

open access: yes, 2015
We describe an algorithm for computing the separating common tangents of two simple polygons using linear time and only constant workspace. A tangent of a polygon is a line touching the polygon such that all of the polygon lies to the same side of the ...
Abrahamsen, Mikkel
core   +3 more sources

Simplicity of tangent bundles of smooth horospherical varieties of Picard number one

open access: yesComptes Rendus. Mathématique, 2022
Recently, Kanemitsu has discovered a counterexample to the long-standing conjecture that the tangent bundle of a Fano manifold of Picard number one is (semi)stable. His counterexample is a smooth horospherical variety.
Hong, Jaehyun
doaj   +1 more source

On Certain Classes of Curve Singularities with Reduced Tangent Cone [PDF]

open access: yes, 1999
We study a class of rational curves with an ordinary singular point, which was introduced in [Geramita and Orecchia, Minimally Generating Ideals Defining Certain Tangent Cones, J. of Algebra 78, No. 1 (1982), 36 – 57].
DE PARIS, ALESSANDRO
core   +1 more source

THE MECHANISM OF VIBRATIONAL MOVEMENT OF TANGENT STRUCTURES IN CLOSED VOLUMES

open access: yesСучасний стан наукових досліджень та технологій в промисловості, 2020
The subject of research in the article is the process of vibratory movement of tangent structures in closed volumes (pipes). The purpose of this work is to investigate the mechanism of vibrational movement of tangent structures in closed volumes (pipes).
Anatoliy Kovtun   +2 more
doaj   +1 more source

Second-order lower radial tangent derivatives and applications to set-valued optimization

open access: yesJournal of Inequalities and Applications, 2017
We introduce the concepts of second-order radial composed tangent derivative, second-order radial tangent derivative, second-order lower radial composed tangent derivative, and second-order lower radial tangent derivative for set-valued maps by means of ...
Bihang Xu, Zhenhua Peng, Yihong Xu
doaj   +1 more source

Tangent Topp-Leone Family of Distributions

open access: yesScientific African, 2022
We introduce the tangent Topp-Leone family of distributions in this study and derive some of its statistical properties. Further, we develop five special distributions and a location-scale regression model based on the new proposed tangent Topp-Leone ...
Salifu Nanga   +2 more
doaj   +1 more source

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