Results 1 to 10 of about 255 (142)

Laguerre's Method Applied to the Matrix Eigenvalue Problem [PDF]

open access: closedMathematics of Computation, 1964
1. Introduction. We present a new algorithm for the calculation of the eigenvalues of real square matrices of orders up to 100. The basic method is directly applicable to complex matrices as well and, in both cases, with each eigenvalue X of A a vector v is produced for which (A - XI)v is null except for a small last element.
Beresford Ν. Parlett
openalex   +3 more sources

Comparing parallel Newton's method with parallel Laguerre's method

open access: closedComputers & Mathematics with Applications, 1976
AbstractNewton's and Laguerre's methods can be used to concurrently refine all separated zeros of a polynomial P(z). This paper analyses the rate convergence of both procedures, and its implication on the attainable number n of correct figures. In two special cases the number m of iterations required to reach an accuracy η = 10−n is shown to grow as ...
Irene Gargantini
openalex   +3 more sources

ABOUT THE PRODUCTION OF THE CONTINUOUS X-RAY SPECTRUM. [PDF]

open access: yesProc Natl Acad Sci U S A, 1929
I propose, therefore, to generalize my previous assumption so as to admit secondary beams to emerge from the scattering atom in all directions. This amounts to an averaging of the matrix elements defined in my former note over all possible directions ...
Sommerfeld A.
europepmc   +3 more sources

Laguerre-Intersection Method for Implicit Solvation [PDF]

open access: yesInternational Journal of Computational Geometry & Applications, 2018
Explicit solvent molecular dynamics simulations of a macromolecule are slow as the number of solvent atoms considered typically increases by order of magnitude. Implicit methods introduce surface-dependent corrections to the force field, gaining speed at the expense of accuracy. Properties such as molecular interface surfaces, volumes and cavities are
Michelle Hatch Hummel   +3 more
openaire   +3 more sources

Nonlinear edge waves and shallow-water theory [PDF]

open access: yes, 1976
Nonlinear effects are considered for shallow-water edge waves on beaches with a general depth distribution. The case of uniform depth away from the shoreline is considered in detail. It is shown that the results obtained are in qualitative agreement with
Minzoni, A. A.
core   +3 more sources

COMPOSITE LAGUERRE PSEUDOSPECTRAL METHOD FOR FOKKER-PLANCK EQUATIONS

open access: yesMathematical Modelling and Analysis, 2023
A composite generalized Laguerre pseudospectral method for the nonlinear Fokker-Planck equations on the whole line is developed. Some composite generalized Laguerre interpolation approximation results are established. As an application, a composite Laguerre pseudospectral scheme is provided for the problems of the relaxation of fermion and boson gases.
Chuan Wang, Tianjun Wang, Youlin Shang
openaire   +3 more sources

Laguerre-like methods for the simultaneous approximation of polynomial multiple zeros [PDF]

open access: yes, 2006
Two new methods of the fourth order for the simultaneous determination of multiple zeros of a polynomial are proposed. The presented methods are based on the fixed point relation of Laguerre's type and realized in ordinary complex arithmetic as well as ...
Milošević Dušan   +2 more
core   +1 more source

Generalization of the Analytical Exponential Model for Homogeneous Reactor Kinetics Equations

open access: yesJournal of Applied Mathematics, 2012
Mathematical form for two energy groups of three-dimensional homogeneous reactor kinetics equations and average one group of the precursor concentration of delayed neutrons is presented.
Abdallah A. Nahla, Mohammed F. Al-Ghamdi
doaj   +1 more source

Airborne ultrasonic vortex generation using flexible ferroelectrets [PDF]

open access: yes, 2011
Cellular ferroelectrets exhibit interesting electromechanical- acoustical characteristics. Their recent appearance and remarkable properties open up new possibilities for the design and development of ultrasonic transducers.
F. Seco   +5 more
core   +2 more sources

Mean summability methods for Laguerre series [PDF]

open access: yesTransactions of the American Mathematical Society, 1990
We apply a construction of generalized convolution in \[ L 1 ( R + × R , x 2 α − 1
openaire   +1 more source

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