Results 31 to 40 of about 3,570,033 (364)

Generalized matrix functions, determinant and permanent

پژوهش‌های ریاضی, 2022
Introduction Since linear and multilinear algebra has many applications in different branches of sciences, the attention of many mathematicians has been attracted to it in recent decades. The determinant and the permanent are the most important functions
Mohammad Hossein Jafari, Ali Reza Madadi
doaj  

A recursive condition for the symmetric nonnegative inverse eigenvalue problem

Revista Integración, 2017
In this paper we present a sufficient ondition and a necessary condition for Symmetri Nonnegative Inverse Eigenvalue Problem. This condition is independent of the existing realizability criteria.
Elvis Ronald Valero, Exequiel Mallea-Zepeda, Eber Lenes   +2 more
doaj   +1 more source

Positive Definiteness of Symmetric Rank 1 (H-Version) Update for Unconstrained Optimization

مجلة بغداد للعلوم, 2022
Several attempts have been made to modify the quasi-Newton condition in order to obtain rapid convergence with complete properties (symmetric and positive definite) of the inverse of  Hessian matrix (second derivative of the objective function).
Saad Shakir Mahmood, Jaafer Hmood Eidi, Jinan Adel Jasem   +2 more
doaj   +1 more source

Symmetric functions and the Vandermonde matrix

Journal of Computational and Applied Mathematics, 2004
The authors discuss symmetric functions and related combinatorial numbers and their recurrences and relate this to the factorization of structured matrices, such as Vandermonde matrices. First definitions and properties are recalled for symmetric functions, defined as \[ \sigma_r(x_1,\ldots,x_n) = \sum_{1\leq ...
Oruc, HALİL, Akmaz, HK
openaire   +3 more sources

The Algebras of Large N Matrix Mechanics [PDF]

, 1998
Extending early work, we formulate the large N matrix mechanics of general bosonic, fermionic and supersymmetric matrix models, including Matrix theory: The Hamiltonian framework of large N matrix mechanics provides a natural setting in which to study ...
Alfaro J., Banks T., C. SCHWARTZ, Gross D., Haan O., Halpern M. B., Halpern M. B., M. B. HALPERN, Pimsner M., Singer I. M., Ya I.   +10 more
core   +5 more sources

Non symmetric random walk on infinite graph [PDF]

Opuscula Mathematica, 2011
We investigate properties of a non symmetric Markov's chain on an infinite graph. We show the connection with matrix valued random walk polynomials which satisfy the orthogonality formula with respect to non a symmetric matrix valued measure.
Marcin J. Zygmunt
doaj   +1 more source

A Non-Iterative Method for the Difference of Means on the Lie Group of Symmetric Positive-Definite Matrices

Mathematics, 2022
A non-iterative method for the difference of means is presented to calculate the log-Euclidean distance between a symmetric positive-definite matrix and the mean matrix on the Lie group of symmetric positive-definite matrices.
Xiaomin Duan, Xueting Ji, Huafei Sun, Hao Guo   +3 more
doaj   +1 more source

A New Symmetric Rank One Algorithm for Unconstrained Optimization [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2011
In this paper, a new symmetric rank one for unconstrained optimization problems is presented. This new algorithm is used to solve symmetric and positive definite matrix.
Abbas Al-Bayati, Salah Shareef
doaj   +1 more source

The distribution of symmetric matrix quotients

Journal of Multivariate Analysis, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Arjun K. Gupta, D. G. Kabe
openaire   +2 more sources

k-Kernel Symmetric Matrices

International Journal of Mathematics and Mathematical Sciences, 2009
In this paper we present equivalent characterizations of k-Kernel symmetric Matrices. Necessary and sufficient conditions are determined for a matrix to be k-Kernel Symmetric. We give some basic results of kernel symmetric matrices.
A. R. Meenakshi, D. Jaya Shree
doaj   +1 more source