Results 21 to 30 of about 7,271,767 (336)

Admissible multivalued hybrid $\mathcal{Z}$-contractions with applications

open access: yesAIMS Mathematics, 2021
In this paper, we introduce new concepts, admissible multivalued hybrid $\mathcal{Z}$-contractions and multivalued hybrid $\mathcal{Z}$-contractions in the framework of $b$-metric spaces and establish sufficient conditions for existence of fixed points ...
Monairah Alansari   +3 more
doaj   +1 more source

Green's Matrix for a Second Order Self-Adjoint Matrix Differential Operator [PDF]

open access: yes, 2009
A systematic construction of the Green's matrix for a second order, self-adjoint matrix differential operator from the linearly independent solutions of the corresponding homogeneous differential equation set is carried out.
Bayram Tekin   +12 more
core   +2 more sources

A simple method for solving matrix equations $ AXB = D $ and $ GXH = C $

open access: yesAIMS Mathematics, 2021
A simple method to solve the common solution to the pair of linear matrix equations $ AXB = D $ and $ GXH = C $ is introduced. Some necessary and sufficient conditions for the existence of a common solution, and two expressions for the general common ...
Huiting Zhang   +3 more
doaj   +1 more source

Non-commutative NLS-type hierarchies: dressing & solutions [PDF]

open access: yes, 2019
We consider the generalized matrix non-linear Schrodinger (NLS) hierarchy. By employing the universal Darboux-dressing scheme we derive solutions for the hierarchy of integrable PDEs via solutions of the matrix Gelfand-Levitan-Marchenko equation, and we ...
Doikou, Anastasia   +2 more
core   +2 more sources

Prime decomposition of quadratic matrix polynomials

open access: yesAIMS Mathematics, 2021
We study the prime decomposition of a quadratic monic matrix polynomial. From the prime decomposition of a quadratic matrix polynomial, we obtain a formula of the general solution to the corresponding second-order differential equation.
Yunbo Tian, Sheng Chen
doaj   +1 more source

Bidifferential Calculus Approach to AKNS Hierarchies and Their Solutions [PDF]

open access: yes, 2010
We express AKNS hierarchies, admitting reductions to matrix NLS and matrix mKdV hierarchies, in terms of a bidifferential graded algebra. Application of a universal result in this framework quickly generates an infinite family of exact solutions ...
Dimakis, Aristophanes   +1 more
core   +4 more sources

Algebraic Characterizations of Relationships between Different Linear Matrix Functions

open access: yesMathematics, 2023
Let f(X1,X2,…,Xk) be a matrix function over the field of complex numbers, where X1,X2,…,Xk are a family of matrices with variable entries. The purpose of this paper is to propose and investigate the relationships between certain linear matrix functions ...
Yongge Tian, Ruixia Yuan
doaj   +1 more source

A Diagrammatic Equation for Oriented Planar Graphs [PDF]

open access: yes, 2010
In this paper we introduce a diagrammatic equation for the planar sector of square non hermitian random matrix models strongly reminiscent of Polchinski's equation in quantum field theory.
Ambjorn   +27 more
core   +1 more source

A general method for solving linear matrix equations of elliptic biquaternions with applications

open access: yesAIMS Mathematics, 2020
In this study, we obtain the real representations of elliptic biquaternion matrices. Afterwards, with the aid of these representations, we develop a general method to solve the linear matrix equations over the elliptic biquaternion algebra. Also we apply
Kahraman Esen Özen
doaj   +1 more source

Field Equations of Massless Fields in the New Interpretation of the Matrix Model [PDF]

open access: yes, 2006
Recently, some of the authors have introduced a new interpretation of matrix models in which covariant derivatives on any curved space can be expressed by large-N matrices.
Aoyama   +19 more
core   +3 more sources

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