Results 51 to 60 of about 82,789,564 (121)

Multipole expansion of Bessel and Gaussian beams for Mie scattering calculations [PDF]

open access: yes, 2009
Multipole expansions of Bessel and Gaussian beams, suitable for use in Mie scattering calculations, are derived. These results allow Mie scattering calculations to be carried out considerably faster than existing methods, something that is of particular ...
Love, G.D   +3 more
core   +1 more source

Symbolic Computation of Polynomial Conserved Densities, Generalized Symmetries, and Recursion Operators for Nonlinear Differential-Difference Equations [PDF]

open access: yes, 2004
Algorithms for the symbolic computation of polynomial conserved densities, fluxes, generalized symmetries, and recursion operators for systems of nonlinear differential-difference equations are presented. In the algorithms we use discrete versions of the
Jan A. S   +15 more
core   +1 more source

Infrared singularities in multi-leg scattering amplitudes [PDF]

open access: yes, 2014
I discuss the state-of-the-art knowledge of long-distance singularities in multi-leg gauge-theory scattering amplitudes and report on an on-going calculation of the three-loop soft anomalous dimension through the renormalization of correlators of semi ...
Einan Gardi, Gardi, Einan; id_orcid
core   +1 more source

An ALE ESFEM for solving PDEs on evolving surfaces [PDF]

open access: yes, 2012
Numerical methods for approximating the solution of partial differential equations on evolving hypersurfaces using surface finite elements on evolving triangulated surfaces are presented.
Vanessa Styles (4460662)   +3 more
core   +1 more source

A Super-Algebraically Convergent, Windowing-Based Approach to the Evaluation of Scattering from Periodic Rough Surfaces [PDF]

open access: yes, 2008
We introduce a new second-kind integral equation method to solve direct rough surface scattering problems in two dimensions. This approach is based, in part, upon the bounded obstacle scattering method that was originally presented in Bruno et al. [2004]
Monro, John Anderson
core   +1 more source

General introduction to "KAM for PDEs"

open access: yes, 2019
It is well known that the phase space of a finite dimensional integrable system is filled by invariant tori; KAM theory ensures that most of them persist under small perturbation.
Bambusi, Dario
core   +1 more source

PRIN 2009: Critical point theory and perturbative methods for nonlinear differential equations. Hamiltonian Systems and Partial Differential Equations

open access: yes, 2011
Many partial differential equations arising in Physics can be seen as innite dimensional Hamiltonian systems. Main examples are the nonlinear Schrodinger (NLS) and wave (NLW) equations, the beam, membrane and Kirkhoff equations in elasticity theory, the ...
BERTI, MASSIMILIANO
core  

The Strong and Weak Senses of Theory-Ladenness of Experimentation: Theory-Driven versus Exploratory Experiments in the History of High-Energy Particle Physics [PDF]

open access: yes, 2012
In the theory-dominated view of scientific experimentation, all relations of theory and experiment are taken on a par; namely, that experiments are performed solely to ascertain the conclusions of scientific theories.
Karaca, Koray
core  

Existence of quasi-periodic solutions for nonlinear evolution equations via the theorem of Nash-Moser

open access: yes, 2012
We survey new existence and stability results of quasi-periodic solutions for ...
BERTI, MASSIMILIANO
core  

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