Search results for "algebra"
showing 10 items of 4129 documents
Reasoning and proving in Algebra. Examples from 8th grade school mathematics textbooks in Italy
2022
Some research studies concerning the didactics of Algebra discuss how learning to solve problems using symbolic algebraic language can be hard for students (Bohlmann et al., 2014; Palm, 2009). Students, in fact, have often difficulty to learn the ways in which the sym- bols should be manipulated to argue or to prove an assertion in order to reach a problem solu- tions. Although many studies conducted by mathematics educators discussed important contri- butions to this subject (e.g. Arzarello, Robutti & Bazzini, 2005; Boero, 2001; Carraher, Schliemann, Brizuela & Earnest, 2006; Lins & Kaput, 2004; Ursini & Trigueros, 2001), not many analysis were conducted on the role of the …
Dalla teoria delle equazioni irrazionali ai numeri bicomplessi nella prima metà dell’ottocento
2011
Teoria delle algebre e geometria nell'ottocento
2012
Si descrive il percorso storico che ha portato alla nascita della teoria delle algebre ed il rapporto con la geometria
C*-seminorms and representation on partial *-algebras
2008
In this paper we investigate the *-representations of a partial *-algebra A. In particular, it is proved that, if A is semiassociative and if the set of right multipliers is dense with respect to a seminorm p on A, there exists a bounded and regular *-represenation on A.
MR2903153 Roch, Steffen; Santos, Pedro A. Two points, one limit: homogenization techniques for two-point local algebras. J. Math. Anal. Appl. 391 (20…
2013
MR2777468 Volosova, Nina V. Contractible quantum Arens-Michael algebras. Banach algebras 2009, 423–440, Banach Center Publ., 91, Polish Acad. Sci. In…
2012
A short survey on Lie theory and Finsler geometry
2017
The aim of this chapter is to provide readers with a common thread to the many topics dealt with in this book, which is intermediate and which aims at postgraduate students and young researchers, wishing to intrigue those who are not experts in some of the topics. We also hope that this book will contribute in encouraging new collaborations among disciplines which have stemmed from related problems. In this context, we take the opportunity to recommend the book by Hawkins [18]. A basic bibliography is outlined between the lines.
Order boundedness and spectrum in locally convex quasi *-algebras
2021
After a quick sketch of the basic aspects of locally convex quasi *-algebras, we focus on order bounded elements and use them to analyze some spectral properties, trying to generalize the approach already studied in the Banach case.
Order bounded elements of topological *-algebras
2012
Several different notions of {\em bounded} element of a topological *-algebra $\A$ are considered. The case where boundedness is defined via the natural order of $\A$ is examined in more details and it is proved that under certain circumstances (in particular, when $\A$ possesses sufficiently many *-representations) {\em order boundedness} is equivalent to {\em spectral boundedness}.