Results 21 to 30 of about 213,365 (281)
đ¶*-algebras associated with branched coverings [PDF]
Proceedings of the American Mathematical Society, 2000 In this note we analyze the C â C^{\ast } -algebra associated with a branched covering both as a groupoid C â C^{\ast } -algebra and as a Cuntz-Pimsner algebra. We determine conditions when the algebra is simple and purely infinite.
Deaconu, Valentin, Muhly, Paul S.
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Completeness for the coalgebraic cover modality [PDF]
Logical Methods in Computer Science, 2012 We study the finitary version of the coalgebraic logic introduced by L. Moss. The syntax of this logic, which is introduced uniformly with respect to a coalgebraic type functor, required to preserve weak pullbacks, extends that of classical propositional
Clemens Kupke +2 more
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A Blended Learning Approach for an Introductory Computer Science Course
Education Sciences, 2021 In this paper, we present our experience with redesigning an introductory computer science course for (electrical) engineers with blended learning concepts.
Anna Förster +9 more
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Special triple covers of algebraic surfaces
Documenta Mathematica, 2022 We study special triple covers f:T\to S of algebraic surfaces, where the Tschirnhausen bundle \mathcal{E}=\left(f_*\mathcal{O}_T/\mathcal{O}_S\right)^\vee is a ...
Nicolina Istrati +2 more
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Digital Image Watermarking using Singular Value Decomposition [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2010 This paper presents a digital image watermarking that applied theory of linear algebra called âSingular Value Decomposition (SVD)â to digital image watermarking .SVD watermarking scheme, which successfully embeds watermarks into images imperceptible ...
Sura Sheriff
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Koszulness, Krull Dimension and Other Properties of Graph-Related Algebras [PDF]
, 2010 The algebra of basic covers of a graph G, denoted by \A(G), was introduced by Juergen Herzog as a suitable quotient of the vertex cover algebra. In this paper we show that if the graph is bipartite then \A(G) is a homogeneous algebra with straightening ...
Constantinescu, Alexandru +1 more
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Annales de Didactique et de Sciences Cognitives, 2016 This first article of a series of two presents on teaching elementary algebra different standpoints, not always easy to reconcile with each other; a second article will cover activities to promote the learning of algebra.
Raymond Duval, François Pluvinage
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LAND COVER CHANGES DETECTION IN POLARIMETRIC SAR DATA USING ALGEBRA, SIMILARITY AND DISTANCE BASED METHODS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Monitoring and surveillance changes around the world need powerful methods, so detection, visualization, and assessment of significant changes are essential for planning and management.
A. Najafi, M. Hasanlou, V. Akbari
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Exel's crossed product for non-unital C*-algebras [PDF]
, 2009 We consider a family of dynamical systems (A,alpha,L) in which alpha is an endomorphism of a C*-algebra A and L is a transfer operator for \alpha. We extend Exel's construction of a crossed product to cover non-unital algebras A, and show that the C ...
Adji +12 more
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Skeletons of Prym varieties and Brill--Noether theory
, 2021 We show that the non-Archimedean skeleton of the Prym variety associated to an unramified double cover of an algebraic curve is naturally isomorphic (as a principally polarized tropical abelian variety) to the tropical Prym variety of the associated ...
Len, Yoav, Ulirsch, Martin
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