Journal ArticleDOI
Abstract algebra with applications, Volumes I and II , by Karlheintz Spindler. Pp. 756, 531. $125 (the set). 1994. ISBN 0-247-9144-4, -9159-2 (Marcel Dekker).
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This article is published in The Mathematical Gazette.The article was published on 1995-11-01. It has received 37 citations till now.read more
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A topological characterization of the ω-limit sets for analytic flows on the plane, the sphere and the projective plane
TL;DR: In this paper, the?-limit sets for analytic and polynomial differential equations on the plane are characterized up to homeomorphisms, and the analogous problem is solved in full detail for analytic flows on the sphere and the projective plane.
Journal ArticleDOI
A randomized approximation algorithm for the minimal-norm static-output-feedback problem
TL;DR: A new randomized algorithm is suggested, for extracting static-output-stabilizing-feedbacks, with approximately minimal-norm, for LTI systems, which is unified for the feasibility and for the optimization problems, as well as for continuous-time or discrete-time systems.
Journal ArticleDOI
Koszulity for graded skew PBW extensions
TL;DR: In this paper, it was shown that if R is a finite presented Koszul 𝕂-algebra then every graded skew PBW extension of R is KoszUL.
Journal ArticleDOI
Where do Fractions Encounter their Equivalents? – Can this Encounter Take Place in Elementary-School?
TL;DR: Shemesh as mentioned in this paper is a software designed for learning equivalence classes of fractions, which can be used in solving traditional fraction problems as well as in broadening the scope of fraction meaning.
Journal ArticleDOI
Computing the Wedderburn decomposition of group algebras by the Brauer–Witt theorem
TL;DR: An alternative constructive proof of the Brauer-Witt theorem is presented using the so-called strongly monomial characters that gives rise to an algorithm for computing the Wedderburn decomposition of semisimple group algebras of finite groups.
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Journal ArticleDOI
A topological characterization of the ω-limit sets for analytic flows on the plane, the sphere and the projective plane
TL;DR: In this paper, the?-limit sets for analytic and polynomial differential equations on the plane are characterized up to homeomorphisms, and the analogous problem is solved in full detail for analytic flows on the sphere and the projective plane.
Journal ArticleDOI
A randomized approximation algorithm for the minimal-norm static-output-feedback problem
TL;DR: A new randomized algorithm is suggested, for extracting static-output-stabilizing-feedbacks, with approximately minimal-norm, for LTI systems, which is unified for the feasibility and for the optimization problems, as well as for continuous-time or discrete-time systems.
Journal ArticleDOI
Where do Fractions Encounter their Equivalents? – Can this Encounter Take Place in Elementary-School?
TL;DR: Shemesh as mentioned in this paper is a software designed for learning equivalence classes of fractions, which can be used in solving traditional fraction problems as well as in broadening the scope of fraction meaning.
Journal ArticleDOI
Computing the Wedderburn decomposition of group algebras by the Brauer–Witt theorem
TL;DR: An alternative constructive proof of the Brauer-Witt theorem is presented using the so-called strongly monomial characters that gives rise to an algorithm for computing the Wedderburn decomposition of semisimple group algebras of finite groups.
Posted Content
$N$-point Virasoro Algebras and Their Modules of Densities
TL;DR: In this article, the authors introduce and study $n$n-point Virasoro algebras, called $tilde{\W_a}$, which are natural generalizations of the classical Virasore algebra and have as quotients multipoint genus zero Krichever-Novikov type algesbras.