Results 71 to 80 of about 1,325 (162)
Bookmakers et parieurs entre rue et tripot [PDF]
This paper examines the concern expressed on the issue of gambling in Victorian England. In the 1840s, a series of scandals led to an increase in the repression of gambling houses. Attempts were also made to moralise the turf. By the end of the century, the rowdiest and seediest aspects of race courses had been eliminated.
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Characterizations of tripotents in JB*-triples
The set $\mathcal{U}(A)$ of tripotents in a $\mathrm{JB}^*$-triple $A$ is characterized in various ways. Some of the characterizations use only the norm-structure of $A$. The partial order on $\mathcal{U}(A)$ as well as $\sigma$-finiteness of tripotents are described intrinsically in terms of the facial structure of the unit ball $A_1$ in $A$, i.e ...
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2-local triple homomorphisms on von Neumann algebras and JBW$^*$-triples [PDF]
We prove that every (not necessarily linear nor continuous) 2-local triple homomorphism from a JBW$^*$-triple into a JB$^*$-triple is linear and a triple homomorphism.
Antonio +4 more
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UEG Week 2025 DDM Summit Presentations [PDF]
United European Gastroenterology Journal, Volume 13, Issue S8, Page S1477-S1538, October 2025.
europepmc +2 more sources
Jordan weak amenability and orthogonal forms on JB*-algebras [PDF]
We prove the existence of a linear isometric correspondence between the Banach space of all symmetric orthogonal forms on a JB$^*$-algebra $\mathcal{J}$ and the Banach space of all purely Jordan generalized derivations from $\mathcal{J}$ into $\mathcal{J}
A. Siddiqui +3 more
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Structural Projections on JBW*-Triples [PDF]
A linear projection R on a Jordan*-triple A is said to be structural provided that, for all elements a, b and c in A, the equality {Rab Rc} = R{a Rbc} holds.
Edwards, C. Martin +1 more
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Geometric characterization of tripotents in real and complex JB∗-triples
The authors show that the geometric characterization of tripotent elements (in other words, partial isometries) in \(C^*\)-algebras obtained by \textit{C. A. Akemann} and \textit{N. Weaver} [Proc. Am. Math. Soc. 130, No. 10, 3033--3037 (2002; Zbl 1035.46038)] is also valid for \(JB^*\)-triples (every \(C^*\)-algebra is a \(JB^*\)-triple for the triple ...
Fernández-Polo, Francisco J +2 more
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On characterization of tripotent matrices in triangular matrix rings
Summary: Let \(\mathfrak{R}\) be a ring with identity 1 whose tripotents are only \(-1\), 0, and 1. It is characterized the structure of tripotents in \(\mathcal{T}(\mathfrak{R})\) which is the ring of triangular matrices over \(\mathfrak{R}\). In addition, when \(\mathfrak{R}\) is finite, it is given number of the tripotents in \(\mathcal{T}_n ...
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Minimal Tripotents via Quadratic Annihilators: Additive Preservers of Truncations
Abstract The contributions in this note begin with a new characterization of (positive) scalar multiples of minimal tripotents in a general $$\hbox {JB}^*$$ JB ∗ -triple E ...
Lei Li, Siyu Liu, Antonio M. Peralta
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On Weakly Tripotent and Locally Invo-Regular Rings
In this article some important observations have been reported on recent works related to weakly tripotent rings and locally invo-regular rings. Our findings give additional results as well as correct some recent results on weakly tripotent rings and locally invo-regular rings appeared in Rendiconti Sem. Mat. Univ. Pol.
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