Results 21 to 30 of about 3,460 (267)

Some homological properties of skew PBW extensions arising in non-commutative algebraic geometry

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
In this short paper we study for the skew PBW (Poincar-Birkhoff-Witt) extensions some homological properties arising in non-commutative algebraic geometry, namely, Auslander-Gorenstein regularity, Cohen-Macaulayness and strongly noetherianity.
Lezama Oswaldo
doaj   +1 more source

EXTENSION ALGEBRAS OF CUNTZ ALGEBRA, II [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2009
AbstractIn this paper, we construct the unique (up to isomorphism) extension algebra, denoted by E∞, of the Cuntz algebra 𝒪∞ by the C*-algebra of compact operators on a separable infinite-dimensional Hilbert space. We prove that two unital monomorphisms from E∞ to a unital purely infinite simple C*-algebra are approximately unitarily equivalent if and ...
Liu, Shudong, Fang, Xiaochun
openaire   +2 more sources

On the Representation of the Lattices of the Algebraic Sets of the Universal Algebras

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2019
The concept of an algebraic set is a basic concept of the classical algebraic geometry over fields. This concept, along with the concept of an algebraic lattice of algebraic sets is the basic concept of so-called algebraic geometry of universal algebras.
A.G. Pinus
doaj   +1 more source

On the Computing of Symbolic 2-Plithogenic And 3-Plithogenic Complex Roots of Unity [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
The concept of unity roots plays a central role in the theory of field extensions and polynomials roots' computing. The objective of this paper is to find the algebraic formula for computing the symbolic 2-plithogenic and 3-plithogenic complex roots of ...
Nabil Khuder Salman
doaj  

Algebraically Birational Extensions

open access: yesJournal of Algebra, 1995
Birational algebras are generalizations of Zariski central rings. Their definition is purely topological, in terms of open sets in the Zariski topology. The paper adds an algebraic condition (which is intrinsically non-commutative) in order to obtain non-commutative information from central information.
Van Oystaeyen, F., Nouh, M.
openaire   +2 more sources

Resonant superalgebras for supergravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Considering supergravity theory is a natural step in the development of gravity models. This paper follows the “algebraic“ path and constructs possible extensions of the Poincaré and Anti-de-Sitter algebras, which inherit their basic commutation ...
Remigiusz Durka, Krzysztof M. Graczyk
doaj   +1 more source

Explicitly solvable systems of two autonomous first-order Ordinary Differential Equations with homogeneous quadratic right-hand sides [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics, 2021
After tersely reviewing the various meanings that can be given to the property of a system of nonlinear ODEs to be solvable, we identify a special case of the system of two first-order ODEs with homogeneous quadratic right-hand sides which is explicitly ...
Francesco Calogero, Farrin Payandeh
doaj   +1 more source

Extensions of algebraic systems [PDF]

open access: yesTransactions of the American Mathematical Society, 1984
There are several generalizations to universal algebras of the notion "The group A \mathfrak {A}
openaire   +1 more source

Quasitilted extensions of algebras I [PDF]

open access: yesProceedings of the American Mathematical Society, 2000
Let A A be a connected finite dimensional
Coelho, Flávio Ulhoa   +2 more
openaire   +2 more sources

A topological interpretation of three Leibnizian principles within the functional extensions [PDF]

open access: yesLogical Methods in Computer Science, 2018
Three philosophical principles are often quoted in connection with Leibniz: "objects sharing the same properties are the same object" (Identity of indiscernibles), "everything can possibly exist, unless it yields contradiction" (Possibility as ...
Marco Forti
doaj   +1 more source

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