Results 31 to 40 of about 1,616 (70)

New building blocks for F1${\mathbb {F}}_1$‐geometry: Bands and band schemes

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 4, April 2025.
Abstract We develop and study a generalization of commutative rings called bands, along with the corresponding geometric theory of band schemes. Bands generalize both hyperrings, in the sense of Krasner, and partial fields in the sense of Semple and Whittle.
Matthew Baker   +2 more
wiley   +1 more source

L‐Fuzzy Prime Ideals in Universal Algebras

open access: yesAdvances in Fuzzy Systems, Volume 2019, Issue 1, 2019., 2019
In this paper, the notions of L−fuzzy prime ideals and maximal L−fuzzy ideals of universal algebras are introduced by applying the general theory of algebraic fuzzy systems.
Berhanu Assaye Alaba   +2 more
wiley   +1 more source

The Tannakian Formalism and the Langlands Conjectures

open access: yes, 2010
Let H be a connected reductive group over an algebraically closed field of characteristic zero, and let G be an abstract group. In this note we show that every homomorphism from the Grothendieck semiring of H to that of G which maps irreducible ...
Chevalley   +5 more
core   +1 more source

Universal quadratic forms and Northcott property of infinite number fields

open access: yesJournal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract We show that if a universal quadratic form exists over an infinite degree, totally real extension of the field of rationals Q$\mathbb {Q}$, then the set of totally positive integers in the extension does not have the Northcott property. In particular, this implies that no universal form exists over the compositum of all totally real Galois ...
Nicolas Daans   +2 more
wiley   +1 more source

Ordered Quasi(BI)‐Γ‐Ideals in Ordered Γ‐Semirings

open access: yesJournal of Mathematics, Volume 2019, Issue 1, 2019., 2019
In this paper, we have defined ordered quasi‐Γ‐ideals and ordered bi‐Γ‐ideals in ordered Γ‐semirings by defining the relation “≤” in ordered Γ semiring S as a ≤ b if a + x = b for any a, b, x ∈ S. By using this relation we have shown that ordered quasi‐Γ‐ideals and ordered bi‐Γ‐ideals in ordered Γ‐semirings are generalization of quasi‐ideals and bi ...
Ali N. A. Koam   +3 more
wiley   +1 more source

Ordered Left Almost ⋇‐Semihypergroups Based on Fuzzy Sets

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
The concept of an involution or anti‐involution is a self‐inverse linear mapping that plays a prominent role in the theory of algebraic structures, particularly rings, hyperrings, ordered semigroups, and ordered semihypergroups. Nowadays, the study of involutions in ordered hyperstructures is a particular area of research in the field of hyperstructure
Nabilah Abughazalah   +2 more
wiley   +1 more source

Simple Polynomial Reissner–Mindlin Shell Model and Its Application in Efficient Analysis of Complex Underground Structures

open access: yesAdvances in Civil Engineering, Volume 2024, Issue 1, 2024.
The isogeometric (IG) Reissner–Mindlin (R–M) shell model solves the problem of shear and membrane locking that besets the finite element (FE) R–M shell model of nonthick underground structures, but still faces complicated modeling and computation, especially for the multijoint structures.
Jingxu Chen   +3 more
wiley   +1 more source

Weighted Automata and Monadic Second Order Logic

open access: yes, 2013
Let S be a commutative semiring. M. Droste and P. Gastin have introduced in 2005 weighted monadic second order logic WMSOL with weights in S. They use a syntactic fragment RMSOL of WMSOL to characterize word functions (power series) recognizable by ...
Labai, Nadia, Makowsky, Johann A.
core   +2 more sources

Gyroscopic Torques Generated by a Spinning Ring Torus

open access: yesAdvances in Mathematical Physics, Volume 2024, Issue 1, 2024.
The known publications related to the gyroscope theory consider only several geometries of the spinning rotors, like the disc, bars, rings, spheres, and others. The geometries of the spinning objects in engineering can have many designs that generate different values of inertial torques. A computing of inertial torques produced by the object’s rotating
Ryspek Usubamatov, John Clayton
wiley   +1 more source

Tensor products and regularity properties of Cuntz semigroups

open access: yes, 2014
The Cuntz semigroup of a C*-algebra is an important invariant in the structure and classification theory of C*-algebras. It captures more information than K-theory but is often more delicate to handle.
Antoine, Ramon   +2 more
core   +1 more source

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