Results 11 to 20 of about 393,817 (333)

A new method based on semi-tensor product of matrices for solving reduced biquaternion matrix equation $ \sum\limits_{p = 1}^l A_pXB_p = C $ and its application in color image restoration

open access: yesMathematical Modelling and Control, 2023
In this paper, semi-tensor product of real matrices is extended to reduced biquaternion matrices, and then some new conclusions of the reduced biquaternion matrices under the vector operator are proposed using semi-tensor product of reduced biquaternion ...
Jianhua Sun   +4 more
doaj   +1 more source

Solving reduced biquaternion matrices equation $ \sum\limits_{i = 1}^{k}A_iXB_i = C $ with special structure based on semi-tensor product of matrices

open access: yesAIMS Mathematics, 2022
In this paper, we propose a real vector representation of reduced quaternion matrix and study its properties. By using this real vector representation, Moore-Penrose inverse, and semi-tensor product of matrices, we study some kinds of solutions of ...
Wenxv Ding   +3 more
doaj   +1 more source

H-representation method for solving reduced biquaternion matrix equation

open access: yesMathematical Modelling and Control, 2022
In this paper, we study the Hankel and Toeplitz solutions of reduced biquaternion matrix equation (1.1). Using semi-tensor product of matrices, the reduced biquaternion matrix equation (1.1) can be transformed into a general matrix equation of the form ...
Xueling Fan   +3 more
doaj   +1 more source

Three special kinds of least squares solutions for the quaternion generalized Sylvester matrix equation

open access: yesAIMS Mathematics, 2022
In this paper, we propose an efficient method for some special solutions of the quaternion matrix equation AXB+CYD=E. By integrating real representation of a quaternion matrix with H-representation, we investigate the minimal norm least squares solution ...
Anli Wei   +3 more
doaj   +1 more source

Perfect hypercomplex algebras: Semi-tensor product approach

open access: yesMathematical Modelling and Control, 2021
The set of associative and commutative hypercomplex numbers, called the perfect hypercomplex algebras (PHAs) is investigated. Necessary and sufficient conditions for an algebra to be a PHA via semi-tensor product (STP) of matrices are reviewed.
Daizhan Cheng   +4 more
doaj   +1 more source

Tensor Products and Bimorphisms [PDF]

open access: yesCanadian Mathematical Bulletin, 1976
The binary tensor product, for modules over a commutative ring, has two different aspects: its connection with universal bilinear maps and its adjointness to the internal hom-functor. Furthermore, in the special situation of finite-dimensional vector spaces, the tensor product can also be described in terms of dual spaces and the internal hom-functor ...
Banaschewski, Bernhard, Nelson, Evelyn
openaire   +2 more sources

Resolution of Fuzzy Relational Inequalities with Boolean Semi-Tensor Product Composition

open access: yesMathematics, 2021
Resolution of fuzzy relational inequalities (FRIs) plays a significant role in decision-making, image compression and fuzzy control. This paper studies the resolution of a kind of FRIs with Boolean semi-tensor product composition.
Shuling Wang, Haitao Li
doaj   +1 more source

Concerning the semistability of tensor products in Arakelov geometry [PDF]

open access: yes, 2012
We study the semistability of the tensor product of hermitian vector bundles by using the $\varepsilon$-tensor product and the geometric (semi)stability of vector subspaces in the tensor product of two vector ...
Bost, Jean-BenoƮt, Chen, Huayi
core   +3 more sources

Trajectory tracking approach to logical (control) networks

open access: yesAIMS Mathematics, 2022
Vector form expression of logical (control) networks is presented. From this aspect, the trajectory table is proposed to investigate Boolean networks. Based on it, the topology structure, controllability and observability of logical (control) networks ...
Xiaoyu Zhao, Shihua Fu
doaj   +1 more source

Tensor product bases and tensor diagonals [PDF]

open access: yesTransactions of the American Mathematical Society, 1970
Let X and Y denote Banach spaces with bases (xi) and (yj), respectively, and let X 0@ Y and X 0., Y denote the completion in the e and 7r crossnorms of the algebraic tensor product X 0 Y. The purpose of this paper is to study the structure of the tensor product spaces X 0 Y and X 0,, Y through a consideration of the properties of the tensor product ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy