This paper is devoted to the computation of transmission eigenvalues in inverse acoustic scattering theory. problem first reformulated as a two by boundary system integral equations. Next, utilizing Schur complement technique, we develop operator with regularization obtain reduced The Nystrom discretization then used an eigenvalue for matrix. We employ recursive method numerical matrix eigenval...

In this study, baroclinic-barotropic instability of the Martian atmosphere is studied for a zonal basic state based on Mariner 9 observations, using a spherical linear primitive equation model derived from a method of 3-D normal mode expansion. As a result of solving a matrix eigenvalue problem, a distinctly unstable mode at synoptic to planetary scales was found with a peak growth rate of 2.3 ...

We consider deformations of metrics in a given conformal class such that the smallest eigenvalue of the Ricci tensor to be a constant. It is related to the notion of minimal volumes in comparison geometry. Such a metric with the smallest eigenvalue of the Ricci tensor to be a constant is an extremal metric of volume in a suitable sense in the conformal class. The problem is reduced to solve a P...

Using a Dirac-matrix substitution rule, applied to the electric charge, the anomalous magnetic moments of fermions are incorporated in local form in the two-body relativistic wave equations of constraint theory. The structure of the resulting potential is entirely determined, up to magnetic type form factors, from that of the initial potential descibing the mutual interaction in the absence of ...

The eigenvalue spectrum of a class of nonsymmetric preconditioned matrices arising in time-dependent partial differential equations is analyzed and discussed. The matrices generated by the underlying numerical integrators are small rank perturbations of block Toeplitz matrices; circulant-like preconditioned based on the former are considered. The eigenvalue distribution of the preconditioned ma...

This paper presents a new method for theoretical stability analysis of a bidirectional dual full bridge DC-DC converter with triple phase-shift control. The developed approach is analytically sound and generally applicable when compared with the existing approaches, which are by and large based on computer simulation. The operating process of a bidirectional converter is multi-stage and nonline...