Results 11 to 20 of about 501,769 (296)

Generalized accelerated AOR splitting iterative method for generalized saddle point problems

open access: yesAIMS Mathematics, 2022
Generalized accelerated AOR (GAAOR) splitting iterative method for the generalized saddle point problems is proposed in this paper. The iterative scheme and the convergence of the GAAOR splitting method are researched.
Jin-Song Xiong
doaj   +1 more source

Random matrix ensembles with split limiting behavior [PDF]

open access: yesRandom Matrices: Theory and Applications, 2018
We introduce a new family of [Formula: see text] random real symmetric matrix ensembles, the [Formula: see text]-checkerboard matrices, whose limiting spectral measure has two components which can be determined explicitly. All but [Formula: see text] eigenvalues are in the bulk, and their behavior, appropriately normalized, converges to the semi-circle
Burkhardt, Paula   +8 more
openaire   +2 more sources

A new Approach for the Modulus-Based Matrix Splitting Algorithms

open access: yesIEEE Access, 2019
We investigate the modulus-based matrix splitting iteration algorithms for solving the linear complementarity problems (LCPs) and propose a new model to solve it.
Wenpeng Wang   +3 more
doaj   +1 more source

A block-diagonally preconditioned Uzawa splitting iteration method for solving a class of saddle-point problems

open access: yesAdvances in Mechanical Engineering, 2023
This paper develops a block diagonal preconditioned Uzawa splitting (BDP-US) method for solving saddle point problems by generalizing the Uzawa splitting iteration method proposed by Li and Ma ( Numer Math Theory Methods Appl 2018; 11: 235–246).
Bo Wu, Xing-Bao Gao
doaj   +1 more source

A preconditioned new modulus-based matrix splitting method for solving linear complementarity problem of $ H_+ $-matrices

open access: yesElectronic Research Archive, 2023
For solving the linear complementarity problem (LCP), we propose a preconditioned new modulus-based matrix splitting (PNMMS) iteration method by extending the state-of-the-art new modulus-based matrix splitting (NMMS) iteration method to a more general ...
Dongmei Yu, Yifei Yuan, Yiming Zhang
doaj   +1 more source

Prediction of anomalous LA-TA splitting in electrides

open access: yesMatter and Radiation at Extremes, 2021
Electrides are an emerging class of materials with excess electrons localized in interstices and acting as anionic interstitial quasi-atoms (ISQs). The spatial ion–electron separation means that electrides can be treated physically as ionic crystals, and
Leilei Zhang, Hua Y. Geng, Q. Wu
doaj   +1 more source

Matrix partitions of split graphs

open access: yesDiscrete Applied Mathematics, 2014
Matrix partition problems generalize a number of natural graph partition problems, and have been studied for several standard graph classes. We prove that each matrix partition problem has only finitely many minimal obstructions for split graphs. Previously such a result was only known for the class of cographs.
Feder, Tomás   +2 more
openaire   +2 more sources

Excited Baryons in Lattice QCD [PDF]

open access: yes, 2002
We present first results for the masses of positive and negative parity excited baryons calculated in lattice QCD using an O(a^2)-improved gluon action and a fat-link irrelevant clover (FLIC) fermion action in which only the irrelevant operators are ...
A. G. Williams   +63 more
core   +4 more sources

SIMETRISASI BENTUK KANONIK JORDAN

open access: yesBarekeng, 2021
If the characteristic polynomial of a linear operator  is completely factored in scalar field of  then Jordan canonical form  of  can be converted to its rational canonical form  of , and vice versa.
Darlena Darlena, Ari Suparwanto
doaj   +1 more source

A matrix formulation for small-x singlet evolution [PDF]

open access: yes, 2007
We propose a matrix evolution equation in (x,kt)-space for flavour singlet, unintegrated quark and gluon densities, which generalizes DGLAP and BFKL equations in the relevant limits.
Anna M Staśto   +16 more
core   +4 more sources

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