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Some Results on Single Valued Neutrosophic Bi-ideals in Ordered Semigroups [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
The importance of the theory of neutrosophy is due to its connections with several fields of sciences, engineering, and technology. So, the aim of this paper is to relate neutrosophy with some algebraic structures mainly the ordered semigroups.
H. Al-Akara, M. Al-Tahan, J. Vimala
doaj   +1 more source

SURREAL ORDERED EXPONENTIAL FIELDS [PDF]

open access: yesThe Journal of Symbolic Logic, 2021
Abstract In 2001, the algebraico-tree-theoretic simplicity hierarchical structure of J. H. Conway’s ordered field ${\mathbf {No}}$ of surreal numbers was ...
Philip Ehrlich, Elliot Kaplan
openaire   +3 more sources

Uniformly continuous 1-1 functions on ordered fields not mapping interior to interior [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2008
In an earlier work we showed that for ordered fields F not isomorphic to the reals R, there are continuous 1-1 unctions on [0, 1]F which map some interior point to a boundary point of the image (and so are not open).
Mojtaba Moniri, Jafar S. Eivazloo
doaj   +1 more source

Normal ordering normal modes

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In a soliton sector of a quantum field theory, it is often convenient to expand the quantum fields in terms of normal modes. Normal mode creation and annihilation operators can be normal ordered, and their normal ordered products have vanishing ...
Jarah Evslin
doaj   +1 more source

Magnetic hydrogels with ordered structure for biomedical applications

open access: yesFrontiers in Chemistry, 2022
Magnetic hydrogels composed of hydrogel matrices and magnetic nanomaterials have attracted widespread interests. Thereinto, magnetic hydrogels with ordered structure possessing enhanced functionalities and unique architectures, show tremendous advantages
Le Xue, Jianfei Sun
doaj   +1 more source

Extragalactic Magnetism with SOFIA (SALSA Legacy Program): The Magnetic Fields in the Multiphase Interstellar Medium of the Antennae Galaxies

open access: yesThe Astrophysical Journal Letters, 2022
Mergers are thought to be a fundamental channel for galaxy growth, perturbing the gas dynamics and the magnetic fields ( B -fields) in the interstellar medium (ISM).
Enrique Lopez-Rodriguez   +10 more
doaj   +1 more source

The fabulous destiny of Richard Dedekind

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2021
By using the preliminary results given in a previous divulgative note, we present here a concise and self--contained introduction to the construction of the real field as the unique, up to increasing isomorphism, Dedekind complete totally ordered field ...
Giuseppe Devillanova   +1 more
doaj   +1 more source

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies

open access: yesThe Astrophysical Journal, 2023
We present the analysis of the magnetic field ( B -field) structure of galaxies measured with far-infrared (FIR) and radio (3 and 6 cm) polarimetric observations.
Alejandro S. Borlaff   +15 more
doaj   +1 more source

On the computability of ordered fields

open access: yesCoRR, 2020
In this paper we develop general techniques for classes of computable real numbers generated by subsets of total computable (recursive functions) with special restrictions on basic operations in order to investigate the following problems: whether a generated class is a real closed field and whether there exists a computable presentation of a generated
Margarita V. Korovina, Oleg V. Kudinov
openaire   +2 more sources

Order Positive Fields. I

open access: yesAlgebra and Logic, 2023
This paper is a part of ongoing research on order positive fields started some years ago. We prove that the real closure of an order positive field even in non-Archimedean case is also order positive.
Korovina, M. V., Kudinov, O. V.
openaire   +3 more sources

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