Results 51 to 60 of about 111,243 (144)

One-factors and k-factors

Discrete Mathematics, 1991
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openaire   +2 more sources

A method of defining a class of linear conjugation problems for two-dimensional vector with closed-form solutions

Учёные записки Казанского университета: Серия Физико-математические науки
The problem of linear conjugation for a two-dimensional piecewise analytic vector was reduced to an equivalent problem of fractional linear conjugation, and a connection between their solutions was established.
S. N. Kiyasov
doaj   +1 more source

G-Pre: A Graph-Theory-Based Matrix Preconditioning Algorithm for Finite Element Simulation Solutions

Applied Sciences
In finite element simulation and analysis, increasing simulation scales place high demands on the preconditioning and solution process of linear matrices.
Min Chen, Jingyan Li, Lijie Li, Kang Liang, Gai Wu, Wei Shen   +5 more
doaj   +1 more source

Characterization of prime and composite numbers using the notion of successive sum of integers and the consequence in primality testing [PDF]

Notes on Number Theory and Discrete Mathematics
In this paper, we give a characterization of primes and composite natural numbers using the notion of the sum of successive natural numbers. We prove essentially that an odd natural number N≥3 is prime if and only if the unique decomposition of N as a ...
Fateh Mustapha Dehmeche, Douadi Mihoubi, Lahcene Ladjelat   +2 more
doaj   +1 more source

Can EMG-Derived Upper Limb Muscle Synergies Serve as Markers for Post-Stroke Motor Assessment and Prediction of Rehabilitation Outcome?

Sensors
EMG-derived muscle synergy, as a representation of neuromotor modules utilized for motor control, has been proposed as a biomarker for stroke rehabilitation.
Fung Ting Kwok, Ruihuan Pan, Shanshan Ling, Cong Dong, Jodie J. Xie, Hongxia Chen, Vincent C. K. Cheung   +6 more
doaj   +1 more source

Factorizations in preduals associated to ρ-contractions

Annals of the West University of Timisoara: Mathematics and Computer Science, 2015
We establish directly factorization results for classes of ρ-contractions, corresponding to those obtained for certain classes of contractions. As an example of result which is not an immediate consequence of the fact that any ρ-contraction is similar to
Chevreau Bernard, Crăciunescu Aurelian
doaj   +1 more source

On matrices associated to prime factorization of odd integers

Condensed Matter Physics, 2008
In this paper we introduce in section 5 integral matrices M(n) for any factorization of an odd integer n into r distinct odd primes. The matrices appear in several versions according to a parameter ρ∈[0,1], they have size 2r×2r and their rank satisfies e.
T. Bier
doaj   +1 more source

Factorization of Hankel operators, range inclusion of Toeplitz and Hankel operators on the vector-valued Hardy space

Comptes Rendus. Mathématique
Using Douglas theorem on factorization and range inclusion of bounded linear operators, we give the factorization of Hankel operators, range inclusion of Hankel and Toeplitz operators defined on vector-valued Hardy spaces.
Bhuia, Sudip Ranjan
doaj   +1 more source

Performance and Scalability of the Block Low-Rank Multifrontal Factorization on Multicore Architectures

ACM Transactions on Mathematical Software, 2019
Matrices coming from elliptic Partial Differential Equations have been shown to have a low-rank property that can be efficiently exploited in multifrontal solvers to provide a substantial reduction of their complexity. Among the possible low-rank formats,
P. Amestoy, A. Buttari, J. L’Excellent, Théo Mary   +3 more
semanticscholar   +1 more source

The limits of 2- refined neutrosophic [PDF]

Neutrosophic Sets and Systems
this paper aims to present the limits of 2- refined neutrosophic, where we studied the of the neutrosophic factorization method and the neutrosophic rationalization method of the limits of 2- refined neutrosophic, we verified the results of these methods
Yaser Ahmad Alhasan, Mohamed Elghazali Ali Mohieldin Mohamed , Raja Abdullah Abdulfatah   +2 more
doaj   +1 more source