Results 31 to 40 of about 936 (209)

The Singular Value Decomposition over Completed Idempotent Semifields

open access: yesMathematics, 2020
In this paper, we provide a basic technique for Lattice Computing: an analogue of the Singular Value Decomposition for rectangular matrices over complete idempotent semifields (i-SVD).
Francisco J. Valverde-Albacete   +1 more
doaj   +1 more source

A note on the conjecture of the autotopism group of the Figueroa’s presemifields

open access: yesSelecciones Matemáticas, 2020
In [4] was stated the following conjecture: If a Figueroa’s presemifield P(K; alfa; beta; A;B) admits an autotopism of order a p-primitive prime divisor of p^n-1, then its autotopism group is isomorphic to a subgroup of GL(K) x GL(K).
Walter Meléndez F., Moisés Delgado O.
doaj   +1 more source

Spread-Theoretic Dual of a Semifield [PDF]

open access: yes, 2009
Given a finite pre-semifield $(S,+,\circ )$, the dual pre-semifield $%(S,+,\ast )$ has multiplication $a\ast b=b\circ a$. In this article, acharacterization is given of the dual pre-semifield in terms of theassociated spreads. This is then used to give a
Johnson, Norman L., Jha, Vikram
core   +2 more sources

Relative importance of genotype, gene expression, and DNA methylation on complex traits in perennial ryegrass

open access: yesThe Plant Genome, 2022
The growing demand for food and feed crops in the world because of growing population and more extreme weather events requires high‐yielding and resilient crops. Many agriculturally important traits are polygenic, controlled by multiple regulatory layers,
Marta Malinowska   +12 more
doaj   +1 more source

Questions of Construction of Quasifields with Associative Powers

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2019
The structure of finite quasi-fields with associative degrees is investigated. These are, above all, associative quasifields, called near-fields. These also include the Moufang quasifields which have loops of nonzero elements are, by definition, loops ...
T. N. Yakovleva
doaj   +1 more source

Clifford semifields

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2004
Summary: It is well known that a semigroup \(S\) is a Clifford semigroup if and only if \(S\) is a strong semilattice of groups. We have recently extended this important result from semigroups to semirings by showing that a semiring \(S\) is a Clifford semiring if and only if \(S\) is a strong distributive lattice of skew-rings.
Sen, Mridul K.   +2 more
openaire   +1 more source

On ternary semifields

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2004
Summary: We introduce the notions of ternary semi-integral domain and ternary semifield and study some of their properties. In particular we also investigate the maximal ideals of the ternary semiring \(\mathbb{Z}^-_0\).
Dutta, Tapan K., Kar, Sukhendu
openaire   +2 more sources

The efficacy of diclazuril (liquid formulation) in the prevention and control of coccidiosis in broiler chicken. [PDF]

open access: yesJournal of Veterinary Medical Research, 2008
This study was carried out to evaluate the efficacy of water soluble formulation of diclazuril (1%) in the prevention and control of mixed Eimeria infection in two experimental (semifield) trials and testing efficacy of this medicament in controlling of ...
M. M. Amer   +4 more
doaj   +1 more source

Algebraic Solution of Tropical Polynomial Optimization Problems

open access: yesMathematics, 2021
We consider constrained optimization problems defined in the tropical algebra setting on a linearly ordered, algebraically complete (radicable) idempotent semifield (a semiring with idempotent addition and invertible multiplication).
Nikolai Krivulin
doaj   +1 more source

Intrasexual Vibrational Behavior of Philaenus spumarius in Semi-Field Conditions

open access: yesInsects, 2021
Insects that communicate by vibrational signals live in a complex interactive network of communication. Most studies on insect intrasexual behavior, based on plant-borne vibrational signals, have targeted few individuals.
Imane Akassou   +5 more
doaj   +1 more source

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