Results 11 to 20 of about 5,624,073 (285)

The Fundamental k-Form and Global Relations [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
In [Proc. Roy. Soc. London Ser. A 453 (1997), no. 1962, 1411-1443] A.S. Fokas introduced a novel method for solving a large class of boundary value problems associated with evolution equations.
Anthony C.L. Ashton
doaj   +4 more sources

The Relation between Fundamental Constants and Particle Physics Parameters

open access: yesUniverse, 2017
The observed constraints on the variability of the proton to electron mass ratio μ and the fine structure constant α are used to establish constraints on the variability of the Quantum Chromodynamic Scale and a combination of the Higgs Vacuum Expectation
Rodger I. Thompson
doaj   +3 more sources

On the fundamental aspect of the first Kelvin's relation in thermoelectricity [PDF]

open access: yesInternational Journal of Thermal Sciences, 2016
Kelvin's relations may be considered as cornerstones in the theory of thermoelectricity. Indeed, they gather together the three thermoelectric effects, associated respectively with Seebeck, Peltier and Thomson, to get a unique and consistent description ...
Yann Apertet
exaly   +2 more sources

Boolean Rings Based On Multirings [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2021
The purpose of this paper is to construct Boolean rings from multirings. In this regards, a method to construct a multigroup(multiring) on a given non-empty set, are introduced and its properties has been investigated.
Reza Ameri   +2 more
doaj   +1 more source

The Reducibility Concept in General Hyperrings

open access: yesMathematics, 2021
By using three equivalence relations, we characterize the behaviour of the elements in a hypercompositional structure. With respect to a hyperoperation, some elements play specific roles: their hypercomposition with all the elements of the carrier set ...
Irina Cristea, Milica Kankaraš
doaj   +1 more source

Strongly Regular Relations Derived from Fundamental Relation

open access: yesJournal of Algebraic Hyperstructures and Logical Algebras, 2023
We introduce a new regular relation δ on a given group G and show that δ is a congurence relation on G, with respect to module the commutator subgroup of G.
B. Afshar, R. Ameri
semanticscholar   +1 more source

Semihypergroup-Based Graph for Modeling International Spread of COVID-n in Social Systems

open access: yesMathematics, 2022
Graph theoretic techniques have been widely applied to model many types of links in social systems. Also, algebraic hypercompositional structure theory has demonstrated its systematic application in some problems. Influenced by these mathematical notions,
Narjes Firouzkouhi   +3 more
doaj   +1 more source

A Survey on the Theory of n-Hypergroups

open access: yesMathematics, 2023
This paper presents a series of important results from the theory of n-hypergroups. Connections with binary relations and with lattices are presented. Special attention is paid to the fundamental relation and to the commutative fundamental relation.
Bijan Davvaz   +2 more
doaj   +1 more source

Auto-Engel Polygroups [PDF]

open access: yesMathematics Interdisciplinary Research, 2021
This paper introduces the concept of auto–Engel polygroups via the heart of hypergroups and investigates the relation between of auto–Engel polygroups and auto–nilpotent polygroups.
Ali Mosayebi-Dorcheh   +2 more
doaj   +1 more source

Evaluating fundamental biochar properties in relation to water holding capacity.

open access: yesChemosphere, 2023
Biochar products that hold and release water within a stable carbonised porous structure provide many opportunities for climate mitigation and a range of applications such as for soil amendments.
S. Adhikari   +3 more
semanticscholar   +1 more source

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