Results 51 to 60 of about 10,835,395 (273)

Visual and Symbolic Representations as Components of Algebraic Reasoning

open access: yesJournal of Numerical Cognition, 2023
Sixty (35 girls) ninth graders were assessed on measures of algebraic reasoning and usage of visual and symbolic representations (with a prompt for visual use) to solve equations and inequalities.
Zehra E. Ünal   +4 more
doaj   +1 more source

Algebraic and transcendental numbers [PDF]

open access: yesRendiconti del Circolo Matematico di Palermo, 1914
n ...
Bauer, G. N., Slobin, H. L.
openaire   +2 more sources

The dual fuzzy matrix equations: Extended solution, algebraic solution and solution

open access: yesAIMS Mathematics, 2023
In this paper, we propose a direct method to solve the dual fuzzy matrix equation of the form $ \mathbf{A}\widetilde{\mathbf{X}}+\widetilde{\mathbf{B}} = \mathbf{C}\widetilde{\mathbf{X}}+\widetilde{\mathbf{D}} $ with $ \mathbf{A} $, $ \mathbf{C ...
Zengtai Gong , Jun Wu, Kun Liu
doaj   +1 more source

On the approximation to algebraic numbers by algebraic numbers

open access: yesGlasnik Matematicki, 2009
Let n be a positive integer. Let ξ be an algebraic real number of degree greater than n. It follows from a deep result of W. M. Schmidt that, for every positive real number e, there are infinitely many algebraic numbers α of degree at most n such that |ξ−α| < H(α)−n−1+e, where H(α) denotes the naive height of α. We sharpen this result by replacing e by
openaire   +3 more sources

The number of connected components of certain real algebraic curves

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
For an integer n≥2, let p(z)=∏k=1n(z−αk) and q(z)=∏k=1n(z−βk), where αk,βk are real. We find the number of connected components of the real algebraic curve {(x,y)∈ℝ2:|p(x+iy)|−|q(x+iy)|=0} for some αk and βk.
Seon-Hong Kim
doaj   +1 more source

Gr\"obner Bases over Algebraic Number Fields

open access: yes, 2015
Although Buchberger's algorithm, in theory, allows us to compute Gr\"obner bases over any field, in practice, however, the computational efficiency depends on the arithmetic of the ground field.
Boku, Dereje Kifle   +3 more
core   +1 more source

Prime Spectrum of the Ring of Adeles of a Number Field

open access: yesMathematics, 2022
Much is known about the adele ring of an algebraic number field from the perspective of harmonic analysis and class field theory. However, its ring-theoretical aspects are often ignored.
Álvaro Serrano Holgado
doaj   +1 more source

An Upper Bound of the Bezout Number for Piecewise Algebraic Curves over a Rectangular Partition

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
A piecewise algebraic curve is a curve defined by the zero set of a bivariate spline function. Given two bivariate spline spaces (Δ) over a domain D with a partition Δ, the Bezout number BN(m,r;n,t;Δ) is defined as the maximum finite number of the ...
Feng-Gong Lang, Xiao-Ping Xu
doaj   +1 more source

Which canonical algebras are derived equivalent to incidence algebras of posets? [PDF]

open access: yesCommunications in Algebra 36 (2008), 4599-4606, 2007
We give a full description of all the canonical algebras over an algebraically closed field that are derived equivalent to incidence algebras of finite posets. These are the canonical algebras whose number of weights is either 2 or 3.
arxiv   +1 more source

Algebraic geometry in mixed characteristic [PDF]

open access: yesarXiv, 2021
Fix a prime number $p$. We report on some recent developments in algebraic geometry (broadly construed) over $p$-adically complete commutative rings. These developments include foundational advances within the subject as well as external applications.
arxiv  

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