Results 21 to 30 of about 53 (53)
Geometric realizations of the s‐weak order and its lattice quotients
Journal of the London Mathematical Society, Volume 112, Issue 3, September 2025.Abstract For an n$n$‐tuple s${\bm{s}}$ of nonnegative integers, the s${\bm{s}}$‐weak order is a lattice structure on s${\bm{s}}$‐trees, generalizing the weak order on permutations. We first describe the join irreducible elements, the canonical join representations, and the forcing order of the s${\bm{s}}$‐weak order in terms of combinatorial objects ...
Eva Philippe, Vincent Pilaud
wiley +1 more source
New building blocks for F1${\mathbb {F}}_1$‐geometry: Bands and band schemes
Journal 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
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Universal quadratic forms and Northcott property of infinite number fields
Journal 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
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Ordered Left Almost ⋇‐Semihypergroups Based on Fuzzy Sets
Journal 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
Advances 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
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Gyroscopic Torques Generated by a Spinning Ring Torus
Advances 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
(λ,μ)-FUZZY IDEALS OF ORDERED Γ-SEMIRINGS
Journal of New Theory, 2016 Abstaract−The notions of (λ, µ)-fuzzy ideals, (λ, µ)-fuzzy k-ideals, (λ, µ)-fuzzy k-bi-ideals, (λ, µ)-fuzzy k-quasi-ideals of an ordered Γ-semirings are introduced and some related properties are investigated.
Debabrata Mandal
doaj
Non-locality, contextuality and valuation algebras: a general theory of disagreement. [PDF]
Philos Trans A Math Phys Eng Sci, 2019 Abramsky S, Carù G.
europepmc +1 more source
Tan's Epsilon-Determinant and Ranks of Matrices over Semirings. [PDF]
Int Sch Res Notices, 2015 Mohindru P, Pereira R.
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