Results 21 to 30 of about 12,285 (254)

Some properties of complex quaternion and complex split quaternion matrices [PDF]

open access: yesMiskolc Mathematical Notes, 2019
The aim of this study is to investigate some properties of complex quaternion and complex split quaternion matrices. To verify this, we use 2x2 complex matrix representation of these quaternions. Moreover, we present a method to find the determinant of complex quaternion and complex split quaternion matrices.
Alagoz, Y., Ozyurt, G.
openaire   +3 more sources

Robust watermarking method for securing color medical images using Slant-SVD-QFT transforms and OTP encryption

open access: yesAlexandria Engineering Journal, 2023
This paper proposes a new robust watermarking method for securing color medical images, where the proposed method relies on combining Slant, Singular Value Decomposition (SVD), and quaternion Fourier-Transform (QFT).
Mohamed Meselhy Eltoukhy   +3 more
doaj   +1 more source

The Regularity of Functions on Dual Split Quaternions in Clifford Analysis

open access: yesAbstract and Applied Analysis, 2014
This paper shows some properties of dual split quaternion numbers and expressions of power series in dual split quaternions and provides differential operators in dual split quaternions and a dual split regular function on Ω⊂ℂ2×ℂ2 that has a dual split ...
Ji Eun Kim, Kwang Ho Shon
doaj   +1 more source

On Constraint Manifolds of Lorentz Sphere

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
The expression of the structure equation of a mechanism is significant to present the last position of the mechanism. Moreover, in order to attain the constraint manifold of a chain, we need to constitute the structure equation.
Aktaş Buşra   +2 more
doaj   +1 more source

Blocks with a generalized quaternion defect group and three simple modules over a 2-adic ring [PDF]

open access: yes, 2015
We show that two blocks of generalized quaternion defect with three simple modules over a sufficiently large 2-adic ring O are Morita-equivalent if and only if the corresponding blocks over the residue field of O are Morita-equivalent.
Eisele, F.
core   +4 more sources

ON BÄCKLUND TRANSFORMATIONS WITH SPLIT QUATERNIONS [PDF]

open access: yesFacta Universitatis, Series: Mathematics and Informatics, 2020
The present paper deals with the introduction of Bäcklund Transformations with split quaternions in Minkowski space. Firstly, we tersely summarized the basic concepts of split quaternion theory and Bishop Frames of non-null curves in Minkowski space.
openaire   +2 more sources

Modified Local and Global Contrast Enhancement Algorithm for Color Satellite Image [PDF]

open access: yesEPJ Web of Conferences, 2019
The quality of remotely sensed satellite images depends on the reflected electromagnetic radiation from the earth’s surface features. Lack of consistent and similar amounts of energy reflected by different features from the earth’s surface results in a ...
Voronin Viacheslav
doaj   +1 more source

On split r-Jacobsthal quaternions

open access: yesAnnales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica, 2020
In this paper we introduce a one-parameter generalization of the split Jacobsthal quaternions, namely the split r-Jacobsthal quaternions. We give a generating function, Binet formula for these numbers. Moreover, we obtain some identities, among others Catalan, Cassini identities and convolution identity for the split r-Jacobsthal quaternions.
openaire   +2 more sources

Quintessence and phantom emerging from the split-complex field and the split-quaternion field

open access: yes, 2015
Motivated by the mathematic theory of split-complex numbers (or hyperbolic numbers, also perplex numbers) and the split-quaternion numbers (or coquaternion numbers), we define the notion of split-complex scalar field and the split-quaternion scalar field.
Chen, Xuelei   +2 more
core   +1 more source

Splitting of differential quaternion algebras

open access: yesJournal of Algebra, 2023
We study differential splitting fields of quaternion algebras with derivations. A quaternion algebra over a field $k$ is always split by a quadratic extension of $k$. However, a differential quaternion algebra need not be split over any algebraic extension of $k$.
Parul Gupta   +2 more
openaire   +2 more sources

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