Results 11 to 20 of about 79,973 (227)

Generalized stress field in granular soils heap with Rayleigh–Ritz method [PDF]

Journal of Rock Mechanics and Geotechnical Engineering, 2017
The stress field in granular soils heap (including piled coal) will have a non-negligible impact on the settlement of the underlying soils. It is usually obtained by measurements and numerical simulations.
Gang Bi
doaj   +2 more sources

An Analysis of the Rayleigh–Ritz and Refined Rayleigh–Ritz Methods for Regular Nonlinear Eigenvalue Problems

SIAM Journal on Matrix Analysis and Applications
25 pages, 1 figure, SIAM Journal on Matrix Analysis and Applications, accepted, December 18 ...
Zhongxiao Jia, Qingqing Zheng
exaly   +4 more sources

Rayleigh–Ritz Majorization Error Bounds with Applications to FEM [PDF]

SIAM Journal on Matrix Analysis and Applications, 2010
17 pages.
Andrew Knyazev
exaly   +3 more sources

Inverse-designed gyrotropic scatterers for non-reciprocal analog computing. [PDF]

Nanophotonics
Abstract While conventional von Neumann based machines are increasingly challenged by modern day requirements, electromagnetic analog computing devices promise to provide a platform that is highly parallel, efficient and fast. Along this paradigm, it has been shown that arrays of subwavelength electromagnetic scatterers can be used as solvers of ...
Hadjiantoni N, Goh H, Hanham SM, Navarro-Cía M, Alù A.   +4 more
europepmc   +2 more sources

On the Rayleigh-Ritz variational method [PDF]

, 2022
We give a simple proof of the well known fact that the approximate eigenvalues provided by the Rayleigh-Ritz variational method are increasingly accurate upper bounds to the exact ones. To this end, we resort to the variational principle, mentioned in most textbooks on quantum chemistry, and to a well known set of projection operators.
Fernández, Francisco M.
openaire   +3 more sources

Rayleigh-Ritz variational approximation and symmetry nonrestoration [PDF]

Physics Letters B, 1996
The investigation of symmetry nonrestoration scenarios has led to a controversy, with certain nonperturbative approximation schemes giving indications in sharp disagreement with those found within conventional perturbation theory. A Rayleigh-Ritz variational approach to the problem, which might be useful in bridging the gap between perturbative and ...
AMELINO-CAMELIA, Giovanni
openaire   +4 more sources

The Rayleigh-Ritz method still competitive [PDF]

Journal of Computational and Applied Mathematics, 1994
Following his earlier work [Numer. Math. 54, 639-654 (1989; Zbl 0645.65027)], the author considers the computation of two-sided bounds for the eigenvalues of the one-dimensional Schrödinger operator with various potentials, using a finite element method with high-order B- splines.
Žitňan, Peter
openaire   +3 more sources

Some observations on the application of the Rayleigh–Ritz method [PDF]

Applied Acoustics, 2001
Fil: Grossi, Ricardo Oscar. Universidad Nacional de Salta. Facultad de Ingenieria. Instituto de Ingenieria Civil y Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas.
Grossi, Ricardo Oscar, Albarracín, Carlos Marcelo   +1 more
openaire   +3 more sources

Effect of Elastically Restrained Edges on Free Transverse Vibration of Functionally Graded Porous Rectangular Plate [PDF]

Mechanics of Advanced Composite Structures, 2022
In this paper, the author studied free transverse vibration of a thin isotropic simply-supported functionally graded (FG) rectangular plate with porosity effect based on classical plate theory. The plate is considered to be elastically restrained against
Yajuvindra Kumar
doaj   +1 more source

Buckling Analysis of Laminated Stiffened Plates with Material Anisotropy Using the Rayleigh–Ritz Approach

Computation, 2023
An energy-based solution for calculating the buckling loads of partially anisotropic stiffened plates is presented, such as antisymmetric cross-ply and angle-ply laminations.
Dimitrios G. Stamatelos, George N. Labeas   +1 more
doaj   +1 more source