A general treatment of upper unbounded and bounded hitchcock problems

A new perturbation treatment of the scat

A new perturbation treatment of the scattering and bound-state problem

✍ B Michalík 📂 Article 📅 1968 🏛 Elsevier Science 🌐 English ⚖ 991 KB

A new object called the distortion operator is introduced into the theory and consequences of such introduction are investigated: The relation of the distortion operator to the common quantities as the transition operator and S-matrix is stated and an equation for it is deduced. This equation is sho

A 3D finite element method for the model

A 3D finite element method for the modelling of bounded and unbounded electromagnetic problems in the time domain

✍ W. P. Carpes Jr; L. Pichon; A. Razek 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 237 KB 👁 3 views

This paper presents a 3D body-conforming "nite element solution of the time-dependent vector wave equation. The method uses edge elements on tetrahedra for the electric "eld interpolation. This kind of element is suited to model Maxwell's equations since it only enforces tangential continuity of vec

A spline function approach to the numeri

A spline function approach to the numerical treatment of scattering and bound-state problems for nonlocal potentials

✍ H.R. Fiebig 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 710 KB

The Lippmann-Schwinger equation for the reactance operator is converted into a system of linear equations. By using spline functions the principal-value singularity of the integral kernel can be treated analytically. Throughout this work recurrence relations suitable for automatic computation are de

Retracted:Comments on ‘Upper bound solut

Retracted:Comments on ‘Upper bound solution to elasticity problems: A unique property of the linearly conforming point interpolation method (LC-PIM)’ by G. R. Liu and G. Y. Zhang, International Journal for Numerical Methods in Engineering, 2008

✍ J. P. Moitinho de Almeida 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 239 KB 👁 1 views

## Abstract The following article from __International Journal for Numerical Methods in Engineering__, Comments on ‘Upper bound solution to elasticity problems: A unique property of the linearly conforming point interpolation method (LC‐PIM)’ by G. R. Liu and G. Y. Zhang, published online on 19 Jun

Comments on ‘Upper bound solution to ela

Comments on ‘Upper bound solution to elasticity problems: A unique property of the linearly conforming point interpolation method (LC-PIM)’ by G. R. Liu and G. Y. Zhang, International Journal for Numerical Methods in Engineering, DOI: 10.1002/nme.2204 [1]

✍ J. P. Moitinho de Almeida 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 35 KB

Comments on ‘Upper bound solution to ela

Comments on ‘Upper bound solution to elasticity problems: A unique property of the linearly conforming point interpolation method (LC-PIM)’ by G. R. Liu and G. Y. Zhang, International Journal for Numerical Methods in Engineering, DOI: 10.1002/nme.2204 [1]

✍ G. R. Liu; Guiyong Zhang 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 51 KB