Results 91 to 100 of about 3,653,792 (195)

Linear maps on real C* - algebras and related structures [PDF]

open access: yes, 2010
PhDIn this thesis we obtain new results on the structures of real C*-algebras and nonsurjective isometries between them. Some of the results have been published in [1].
Apazoglou, Maria
core   +1 more source

Order preserving limits of finite-dimensional nest algebras. [PDF]

open access: yes, 2002
We introduce order conserving embeddings as a more general form of order preserving embeddings between finite dimensional nest algebras. The structure of these embeddings is determined, in terms of order indecomposable decompositions, and they are shown ...
Alan Hopenwasser   +3 more
core  

Merging Intuitionistic and De Morgan Logics

open access: yesMathematics
We introduce De Morgan Heyting logic for Heyting algebras with De Morgan negation (DH-algebras). The variety DH of all DH-algebras is congruence distributive. The lattice of all subvarieties of DH is distributive.
Minghui Ma, Juntong Guo
doaj   +1 more source

On ideals of free lie algebras

open access: yesJournal of Pure and Applied Algebra, 1987
It is proved that in a free Lie algebra a nontrivial ideal which has infinite rank may be the whole algebra under certain conditions. It is proved that if F is a free Lie algebra of rank \(> 1\) and L a subalgebra of F such that \(L\supseteq F_{2,2}\) then \(L/F_{2,2}\) is free metabelian if and only if there is a set \(Y\subseteq L\) which is linearly
openaire   +4 more sources

FREE ALGEBRAS AND COPRODUCTS IN VARIETIES OF GÖDEL ALGEBRAS

open access: yesThe Journal of Symbolic Logic
Abstract Gödel algebras are the Heyting algebras satisfying the axiom $(x \to y) \vee (y \to x)=1$ .
openaire   +3 more sources

Two Generator Subalgebras Of Lie Algebras. [PDF]

open access: yes, 2007
In [14] Thompson showed that a finite group G is solvable if and only if every twogenerated subgroup is solvable (Corollary 2, p. 388). Recently, Grunevald et al.
Bowman, Kevin   +2 more
core  

Sets with two associative operations

open access: yesOpen Mathematics, 2003
Pirashvili Teimuraz
doaj   +1 more source

On Algebras of Distributions of Binary Formulas for Theories of Unars

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2016
Algebras of distributions of binary isolating and semi-isolating formulas are derived structures for a given theory. These algebras reflect binary links between realizations of 1-types defined by formulas of the initial theory.
D. Emelyanov
doaj  

On the boundary Carrollian conformal algebra. [PDF]

open access: yesLett Math Phys
Buzaglo L   +5 more
europepmc   +1 more source

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