Results 51 to 60 of about 83,251 (167)

Determinants of block tridiagonal matrices

Linear Algebra and its Applications, 2008
8 pages, final form.
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Additive Results of Group Inverses in Banach Algebras

Mathematics
In this paper, we present new presentations of group inverses for the sum of two group invertible elements in a Banach algebra. We then apply these results to block complex matrices.
Dayong Liu, Huanyin Chen
doaj   +1 more source

The Tropical Matrix Groups with Symmetric Idempotents

Discrete Dynamics in Nature and Society, 2018
In this paper we study the semigroup Mn(T) of all n×n tropical matrices under multiplication. We give a description of the tropical matrix groups containing a diagonal block idempotent matrix in which the main diagonal blocks are real matrices and other ...
Lin Yang
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The Unipotency of Linear Groups Generated by Matrices with Primitive  Elements Contain no more than Six Jorden Blocks

Journal of Harbin University of Science and Technology, 2019
In order to solve the problem of whether the matrices generated by two unipotent matrices are unipotency, a new combinatorial property of generators of free groups is obtained by using the matrix logarithmic tool。From the point of the combination of ...
YANG Xin-song, MA Chang
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Block diagonalization of (p, q)-tridiagonal matrices

Special Matrices
In this article, we study the block diagonalization of (p,q)\left(p,q)-tridiagonal matrices and derive closed-form expressions for the number and structure of diagonal blocks as functions of the parameters pp, qq, and nn. This reduction enables efficient
Manjunath Hariprasad
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The estimates of diagonally dominant degree and eigenvalues inclusion regions for the Schur complement of block diagonally dominant matrices

Open Mathematics, 2015
The theory of Schur complement plays an important role in many fields, such as matrix theory and control theory. In this paper, applying the properties of Schur complement, some new estimates of diagonally dominant degree on the Schur complement of I(II)-
Wang Feng, Sun Deshu
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Secure Key Exchange in Tropical Cryptography: Leveraging Efficiency with Advanced Block Matrix Protocols

Mathematics
In the quest for robust and efficient digital communication, this paper introduces cutting-edge key exchange protocols leveraging the computational prowess of tropical semirings and the structural resilience of block matrices.
Mariana Durcheva, Kiril Danilchenko
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Factorization of block matrices

Linear Algebra and its Applications, 1985
This investigation is concerned with block matrices presented in factored partitions. The work stated here involves theorems, important examples and applications brought up by the notion of general factorization of block matrices. It is interesting to note here the principal merit of the examples, its techniques and the special cases such as self ...
Ellis, Robert L., Gohberg, Israel, Lay, David   +2 more
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Core Concepts Behind Quadripartitioned Neutrosophic Soft Block Matrices [PDF]

Neutrosophic Sets and Systems
We introduce quadripartitioned neutrosophic soft block matrices, extending neutrosophic soft matrices with a four-part structure to model uncertainty, indeterminacy, falsity, and a new component: uncertainty, in decision-making.
S. Ramesh Kumar, A. Stanis Arul Mary
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Preconditioning block Toeplitz matrices

, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huckle, T. K., Noutsos, D.
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