First-order perturbation method for anisotropic media

Perturbation Analysis of Finlines Containing Anisotropic Media

is a genuine feature of this laser configuration, that also appears in other calculations. As can be concluded from Fig. 3, the use of a.efI in eqn. 1 is essential for a reasonable linewidth calculation of DFB lasers with a reflecting end facet. It can be shown that a comparably strong effect also occurs for two reflecting end facets with KL>2 and in the case of the phase-shifted DFB laser with...

A method for solving first order fuzzy differential equation

The linear sampling method for anisotropic media

We consider the inverse scattering problem of determining the support of an anisotropic inhomogeneous medium from a knowledge of the incident and scattered time harmonic acoustic wave at 1xed frequency. To this end, we extend the linear sampling method from the isotropic case to the case of anisotropic medium. In the case when the coe6cients are real we also show that the set of transmission ei...

A NEW MODIFIED HOMOTOPY PERTURBATION METHOD FOR SOLVING LINEAR SECOND-ORDER FREDHOLM INTEGRO-DIFFERENTIAL EQUATIONS

In this paper, we tried to accelerate the rate of convergence in solving second-order Fredholm type Integro-differential equations using a new method which is based on Improved homotopy perturbation method (IHPM) and applying accelerating parameters. This method is very simple and the result is obtained very fast.  

Homotopy Perturbation Method for Solving Strum-Liouville Problms of Fractional Order