English
Related papers

Related papers: Order isomorphisms between cones of JB-algebras

200 papers

In this paper a full description of order isomorphisms between effect algebras of atomic JBW-algebras is given. We will derive a closed formula for the order isomorphisms on the effect algebra of type I factors by proving that the…

Functional Analysis · Mathematics 2021-04-14 Mark Roelands , Marten Wortel

We show that any order isomorphism between ordered structures of associative unital JB-subalgebras of JBW algebras is implemented naturally by a Jordan isomorphism. Consequently, JBW algebras are determined by the structure of their…

Operator Algebras · Mathematics 2011-12-01 J. Hamhalter , E. Turilova

We give an order-theoretic characterization of the JB-algebras among the complete order unit spaces in terms of the existence of an order-anti-automorphism of the interior of the cone that is homogeneous of degree -1. More geometrically, we…

Functional Analysis · Mathematics 2026-03-24 Mark Roelands , Samuel Tiersma

We prove that for a bijective, unital, linear map between absolute order unit spaces is an isometry if, and only if, it is absolute value preserving. We deduce that, on (unital) $JB$-algebras, such maps are precisely Jordan isomorphisms.…

Functional Analysis · Mathematics 2019-03-14 Anil Kumar Karn , Amit kumar

We provide a complete description of the order isomorphisms between the self-adjoint parts of $C^*$-algebras. Furthermore, we characterize such isomorphisms between general operator intervals in $AW^*$-algebras. For the description, we use…

Operator Algebras · Mathematics 2026-01-22 Youssef El Khatiri

Every atomic JBW-algebra is known to be a direct sum of JBW-algebra factors of type I. Extending Kadison's anti-lattice theorem, we show that each of these factors is a disjointness free anti-lattice. We characterise disjointness, bands,…

Functional Analysis · Mathematics 2023-05-31 Onno van Gaans , Anke Kalauch , Mark Roelands

A basic problem in the theory of partially ordered vector spaces is to characterise those cones on which every order-isomorphism is linear. We show that this is the case for every Archimedean cone that equals the inf-sup hull of the sum of…

Functional Analysis · Mathematics 2023-11-27 Bas Lemmens , Hent van Imhoff , Onno van Gaans

In this paper we will study the representations of isomorphisms between bases of topological spaces. It turns out that the perfect setting for this study is that of regular open subsets of complete metric spaces, but we have achieved some…

General Topology · Mathematics 2021-08-31 Javier Cabello Sánchez

An algebraic linear ordering is a component of the initial solution of a first-order recursion scheme over the continuous categorical algebra of countable linear orderings equipped with the sum operation and the constant 1. Due to a general…

Formal Languages and Automata Theory · Computer Science 2010-02-10 Stephen L. Bloom , Zoltan Esik

One of the central questions of universal algebraic geometry is: when two algebras have the same algebraic geometry? There are various interpretations of the sentence "Two algebras have the same algebraic geometry". One of these is…

General Mathematics · Mathematics 2007-05-23 A. Tsurkov

We characterise the isomorphisms of Tits--Kantor--Koecher Lie algebras of JB*-triples as a class of surjective linear isometries and show how these algebras form a category equivalent to that of JB*-triples. We introduce the concepts of…

Functional Analysis · Mathematics 2025-04-02 María Cueto-Avellaneda , Lina Oliveira

Recently Yang-Roh-Jun introduced the notion of ordered BCI-algebras as a generalization of BCI-algebras. They also introduced the notions of homomorphisms and kernels of ordered BCI-algebras and investigated related properties. Here we…

Rings and Algebras · Mathematics 2023-07-24 Eunsuk Yang , Eun Hwan Roh , Young Bae Jun

We consider the bar complex of a monomial non-unital associative algebra $A=k \langle X \rangle / (w_1,...,w_t)$. It splits as a direct sum of complexes $B_w$, defined for any fixed monomial $w=x_1...x_n \in A$. We give a simple argument,…

Rings and Algebras · Mathematics 2020-08-04 Natalia Iyudu , Ioannis Vlassopoulos

A quantitative model of concurrent interaction is introduced. The basic objects are linear combinations of partial order relations, acted upon by a group of permutations that represents potential non-determinism in synchronisation. This…

Logic in Computer Science · Computer Science 2011-07-08 Emmanuel Beffara

We define a general notion of partially ordered Jordan algebra (over a partially ordered ring), and we show that the Jordan geometry associated to such a Jordan algebra admits a natural invariant partial cyclic order, whose intervals are…

Rings and Algebras · Mathematics 2018-01-16 Wolfgang Bertram

Let S be a subsemigroup of an abelian torsion-free group G. If S is a positive cone of G, then all C*-algebras generated by faithful isometrical non-unitary representations of S are canonically isomorphic. Proved by Murphy, this statement…

Operator Algebras · Mathematics 2012-12-04 M. A. Aukhadiev , V. H. Tepoyan

It is well known that there is a correspondence between sets and complete, atomic Boolean algebras (CABA's) taking a set to its power-set and, reciprocally, a complete, atomic Boolean algebra to its set of atomic elements. Of course, such a…

Category Theory · Mathematics 2022-09-20 Marcelo E. Coniglio , Guilherme V. Toledo

An elegant description of the general form of order automorphisms of effect algebras has been known in the complex case. We present a much simpler proof based on the projective geometry which works also in the real case. As an application…

Functional Analysis · Mathematics 2026-02-25 Peter Semrl

The distributive property can be studied through bilinear maps and various morphisms between these maps. The adjoint-morphisms between bilinear maps establish a complete abelian category with projectives and admits a duality. Thus the…

Category Theory · Mathematics 2012-05-04 James B. Wilson

To each symmetric graded Frobenius superalgebra we associate a W-algebra. We then define a linear isomorphism between the trace of the Frobenius Heisenberg category and a central reduction of this W-algebra. We conjecture that this is an…

Representation Theory · Mathematics 2022-04-27 Michael Reeks , Alistair Savage
‹ Prev 1 2 3 10 Next ›