Results 31 to 40 of about 439,115 (199)

SMARANDACHE SPECIAL DEFINITE ALGEBRAIC STRUCTURES [PDF]

open access: yes, 2009
Introducing the notion of Smarandache special definite algebraic structures, also called equivalently as Smarandache definite special algebraic structures.
Vasantha, Kandasamy
core   +1 more source

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

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

Poisson algebras via model theory and differential-algebraic geometry [PDF]

open access: yes, 2017
Brown and Gordon asked whether the Poisson Dixmier–Moeglin equivalence holds for any complex affine Poisson algebra, that is, whether the sets of Poisson rational ideals, Poisson primitive ideals, and Poisson locally closed ideals coincide.
Moosa, Rahim   +8 more
core   +1 more source

Projective varieties have countably many real forms

open access: yesComptes Rendus. Mathématique, 2023
In this note, we check that a complex projective algebraic variety has (at most) countably many real forms. We more generally prove it when the field of reals is replaced with a field that has only countably many finite extensions up to isomorphism.
Labinet, Timothée L.
doaj   +1 more source

The classification of extensions of 𝐶*-algebras [PDF]

open access: yesBulletin of the American Mathematical Society, 1981
where K = K(H) denotes the compact operators on a separable infinite-dimensional Hubert space H. The addition operation comes from associating to (1.1) its "Busby invariant" [4, Theorem 4.3] A —• Q(B)9 where (1(B) denotes the outer multiplier algebra of B ® K, and then using an injection of (1(B) ® (1(B) into (1(B).
Rosenberg, Jonathan, Schochet, Claude
openaire   +3 more sources

Facilitating modular property-preserving extensions of programming languages [PDF]

open access: yes, 1998
We will explore an approach to modular programming language descriptions and extensions in a denotational style. Based on a language core, language features are added stepwise on the core. Language features can be described separated from each other in
Claus Pahl, Pahl, Claus
core   +2 more sources

On the Extensions of Zassenhaus Lemma and Goursat’s Lemma to Algebraic Structures

open access: yesJournal of Mathematics, 2022
The Jordan–Hölder theorem is proved by using Zassenhaus lemma which is a generalization of the Second Isomorphism Theorem for groups. Goursat’s lemma is a generalization of Zassenhaus lemma, it is an algebraic theorem for characterizing subgroups of the ...
Fanning Meng, Junhui Guo
doaj   +1 more source

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